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As filed with the Securities and Exchange Commission on July 17, 2009

REGISTRATION NO. 333-            

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM S-3

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

WASHINGTON REAL ESTATE INVESTMENT TRUST

(Exact name of Registrant as specified in its charter)

6110 EXECUTIVE BOULEVARD

SUITE 800

ROCKVILLE, MARYLAND 20852

(301) 984-9400

(Address, including zip code, and telephone number of Registrant’s principal executive offices)

WILLIAM T. CAMP

CHIEF FINANCIAL OFFICER

6110 EXECUTIVE BOULEVARD

SUITE 800

ROCKVILLE, MARYLAND 20852

(301) 984-9400

(Name, address, including zip code, and telephone number of agent for service)

THE COMMISSION IS REQUESTED TO SEND COPIES OF ALL COMMUNICATIONS TO:

JEFFREY E. JORDAN, ESQ.

ARENT FOX LLP

1050 CONNECTICUT AVENUE, N.W.

WASHINGTON, D.C. 20036

(202) 857-6473

APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: FROM TIME TO TIME AFTER THE EFFECTIVE DATE OF THIS REGISTRATION STATEMENT AS REGISTRANT DETERMINES BASED ON MARKET CONDITIONS AND OTHER FACTORS.

If the only securities being registered on this form are being offered pursuant to dividend or interest reinvestment plans, please check the following box.    ¨

If any of the securities being registered on this form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, other than securities offered only in connection with dividend or interest reinvestment plans, check the following box.    x

If this form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.    ¨

If this form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.    ¨

If this Form is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box.    x

If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box.    ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

CALCULATION OF REGISTRATION FEE

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PROSPECTUS

WASHINGTON REAL ESTATE INVESTMENT TRUST

6110 EXECUTIVE BOULEVARD, SUITE 800

ROCKVILLE, MARYLAND 20852

(301) 984-9400

COMMON SHARES

PREFERRED SHARES

COMMON SHARE WARRANTS

DEBT SECURITIES

Washington Real Estate Investment Trust may offer from time to time its

We may sell the offered securities in one or more ways: directly, through agents we designate from time to time or to or through underwriters or dealers. If we use any agents or underwriters in selling any of the offered securities, the prospectus supplement that we will provide will identify the agents and underwriters and describe any applicable purchase price, fee, commission or discount arrangement.

Our common shares of beneficial interest are listed on the New York Stock Exchange under the symbol “WRE”. Where applicable, the prospectus supplement will contain information on any listing on a securities exchange of securities covered by that prospectus supplement.

Investing in our securities involves risks. Before buying our securities, you should refer to the risk factors included in our periodic reports, in prospectus supplements relating to specific offerings and in other information that we file with the Securities and Exchange Commission. See “Risk Factors” beginning on page 1 of this prospectus.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of the offered securities or passed upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense.

The date of this prospectus is July 17, 2009.

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YOU SHOULD RELY ONLY ON THE INFORMATION CONTAINED IN THIS PROSPECTUS AND THE ACCOMPANYING PROSPECTUS SUPPLEMENT OR INCORPORATED BY REFERENCE IN THESE DOCUMENTS. NO DEALER, SALESPERSON OR OTHER PERSON IS AUTHORIZED TO GIVE ANY INFORMATION OR TO REPRESENT ANYTHING NOT CONTAINED OR INCORPORATED BY REFERENCE IN THIS PROSPECTUS OR THE ACCOMPANYING PROSPECTUS SUPPLEMENT. IF ANYONE PROVIDES YOU WITH DIFFERENT, INCONSISTENT OR UNAUTHORIZED INFORMATION OR REPRESENTATIONS, YOU MUST NOT RELY ON THEM. THIS PROSPECTUS AND THE ACCOMPANYING PROSPECTUS SUPPLEMENT ARE AN OFFER TO SELL ONLY THE SECURITIES OFFERED BY THESE DOCUMENTS, BUT ONLY UNDER CIRCUMSTANCES AND IN JURISDICTIONS WHERE IT IS LAWFUL TO DO SO. THE INFORMATION CONTAINED IN THIS PROSPECTUS OR ANY PROSPECTUS SUPPLEMENT IS CURRENT ONLY AS OF THE DATE ON THE FRONT OF THOSE DOCUMENTS.

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ABOUT THIS PROSPECTUS

This prospectus is part of a registration statement that we filed with the SEC using a shelf registration process. Under this process, we may sell the common shares, the preferred shares, the common share warrants and the debt securities described in this prospectus in one or more offerings. We may sell the offered securities in any combination—separately, together or as units with other offered securities—in one or more series or amounts and at prices and on other terms that we determine at the time of sale.

This prospectus provides you with a general description of the securities we may offer. Each time we sell securities, we will provide a prospectus supplement containing information about the specific terms and method of the offering. The prospectus supplement may also add, update or change the information in this prospectus. You should read both this prospectus and the applicable prospectus supplement, together with additional information that we refer to under “Where You Can Find More Information,” before making an investment decision.

FORWARD-LOOKING STATEMENTS

Some of the information included in this prospectus, the accompanying prospectus supplement and the documents that we incorporate by reference contain “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995 (set forth in Section 27A of the Securities Act of 1933, as amended, or the Securities Act, and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act). Also, documents we subsequently file with the Securities and Exchange Commission and incorporate by reference will contain forward-looking statements. Forward-looking statements involve numerous risks and uncertainties, and you should not rely on them as predictions of future events. Forward-looking statements depend on assumptions, data or methods which may be incorrect or imprecise, and we may not be able to realize them. We do not guarantee that the transactions and events described will happen as described (or that they will happen at all). You can identify forward-looking statements by the use of forward-looking terminology such as “believes,” “expects,” “may,” “will,” “should,” “seeks,” “approximately,” “intends,” “plans,” “estimates” or “anticipates” or the negative of these words and phrases or similar words or phrases. You can also identify forward-looking statements by discussions of strategy, plans or intentions.

Our actual results could differ materially from those set forth or contemplated in the forward-looking statements depending upon economic trends, market conditions and fluctuations and other factors discussed under the caption “Risk Factors” in this prospectus, in the accompanying prospectus supplement and in our most recent Annual Report on Form 10-K, as updated by our future filings. While forward-looking statements reflect our good faith beliefs, they are not guarantees of future performance. We disclaim any obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

RISK FACTORS

You should carefully consider any specific risks set forth under the caption “Risk Factors” in the applicable prospectus supplement and under the caption “Risk Factors” in our most recent annual report on Form 10-K and subsequent quarterly reports on Form 10-Q, incorporated into this prospectus and the accompanying prospectus supplement by reference, as updated by our subsequent filings under the Exchange Act. You should consider carefully those risk factors together with all of the other information included and incorporated by reference in this prospectus and the accompanying prospectus supplement before you decide to purchase our securities.

WASHINGTON REAL ESTATE INVESTMENT TRUST

Washington Real Estate Investment Trust is a self-administered, self-managed equity real estate investment trust. Our business consists of the ownership and development of income-producing real properties in the greater Washington metro region. We have a fundamental strategy of regional focus and diversification by property type. Our principal objective is to invest in high quality properties in prime locations, then proactively manage, lease and develop ongoing capital improvement programs to improve their long-term economic performance. On July 16, 2009, we owned 92 properties, consisting of 28 office buildings, 22 industrial/flex properties, 17 medical office buildings, 14 retail shopping centers and 11 multifamily buildings, and land for development.

Our principal offices are located at 6110 Executive Boulevard, Suite 800, Rockville, Maryland 20852. Our telephone number there is (301) 984-9400.

USE OF PROCEEDS

Unless we state otherwise in our prospectus supplement, we intend to use the net proceeds from the sale of offered securities for general business purposes, including the acquisition, renovation, expansion or improvement of income-producing properties or the repayment of debt. We expect that properties that we purchase in the future will be of the same general character as those we presently own. We may also use the net proceeds to acquire another REIT or other company that invests in income producing properties, although we do not have a specific plan to do so. Until we use the net proceeds for the purposes described above, we may invest them in short-term income producing investments, such as commercial paper, government securities or money market funds that invest in government securities and/or commercial paper.

RATIOS OF EARNINGS TO FIXED CHARGES

The following table sets forth WRIT’s ratios of earnings to fixed charges for the periods shown:

We computed the ratios of earnings to fixed charges by dividing earnings by fixed charges. For this purpose, earnings consist of income from continuing operations plus fixed charges. Fixed charges consist of interest expense, including interest costs capitalized, and the amortized costs of debt issuance.

DESCRIPTION OF SHARES

General

WRIT is authorized to issue 100,000,000 common shares with a par value of $.01 per share. Under Maryland law and WRIT’s declaration of trust, WRIT may increase the aggregate number of authorized common shares without shareholder approval. As of May 5, 2009, there were 58,250,386 common shares outstanding.

WRIT’s board of trustees may propose in the future to amend WRIT’s declaration of trust to authorize WRIT to issue preferred shares with a par value of $.01 per share. A preferred shares amendment may also include modifications to the declaration of trust to distinguish the rights of the holders of common shares and the holders of preferred shares. Adoption of a preferred shares amendment

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would require the approval of the holders of 70% of WRIT’s outstanding common shares at a meeting of WRIT’s shareholders. No preferred shares may be issued prior to the adoption of a preferred shares amendment.

We describe below some of the terms of the common shares and preferred shares. In addition, we describe selected provisions of WRIT’s declaration of trust and selected provisions of Maryland law. We will describe in a prospectus supplement the specific terms of any series of preferred shares. The descriptions in this prospectus and the applicable prospectus supplement are not complete and may not contain all of the information that may be important to you. To obtain further information, you should refer to the provisions of WRIT’s declaration of trust dated April 5, 1996, the amendments to the declaration of trust dated September 21, 1998, June 24, 1999 and May 31, 2006, the bylaws, any preferred shares amendment and any applicable amendment to the declaration of trust fixing the terms of a series of preferred shares.

Common shares

Holders of common shares are entitled to receive dividends and distributions when and as declared by the board of trustees after payment of, or provision for, any cumulated dividends and distributions on and any required redemptions of any preferred shares then outstanding. Holders of common shares have one vote per share. Voting rights are not cumulative. This means that in the election of trustees at a shareholders’ meeting, the holders of a majority of the outstanding common shares can cast all of their votes for each trustee to be elected and elect all of the trustees then standing for election, and the votes held by the holders of the remaining common shares will not be sufficient to elect any trustee.

The declaration of trust establishes the number of trustees at not less than three nor more than eleven and divides the trustees into three classes to be elected on a staggered basis. Those trustees are elected by the holders of the common shares. If a preferred shares amendment is proposed and adopted, the board of trustees could establish a series of preferred shares having the right to elect up to two additional trustees, but less than a majority of the trustees, under specified circumstances and for specified periods, which we describe below.

Under a preferred shares amendment, the board of trustees could reclassify any unissued common shares in one or more classes and could amend the declaration of trust to decrease, as well as increase, the aggregate number of common shares authorized without shareholder approval.

Upon liquidation of WRIT, holders of common shares would receive their pro rata share of the distributable assets of WRIT remaining after the satisfaction of preferential rights of any preferred shares and the satisfaction of all debts and liabilities of WRIT. Holders of common shares do not have any preference, conversion, exchange, preemptive or redemption rights.

The common shares are listed on the New York Stock Exchange. Computershare Investor Services, Canton, Massachusetts is the transfer agent for the common shares.

Preferred shares

General. The following description of preferred shares is based upon the terms of a preferred shares amendment that WRIT’s board of trustees would expect to propose to shareholders prior to offering preferred shares. Following shareholder approval of a preferred shares amendment, the board of trustees would be authorized, without further shareholder action, to issue preferred shares, in one or more series, with designations, preferences, rights and limitations as the board of trustees approves. Under a preferred shares amendment, WRIT would expect to be authorized to issue 5,000,000 preferred shares with a par value of $.01 per share, but the board of trustees could amend the declaration of trust to increase or decrease the aggregate number of preferred shares authorized without shareholder approval.

The preferred shares are proposed to have the dividend, liquidation, redemption, conversion and voting rights described below unless the prospectus supplement relating to a particular series of preferred shares indicates otherwise. You should refer to the prospectus supplement relating to the particular series of preferred shares offered for specific terms, including:

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The prospectus supplement also may discuss the federal income tax considerations applicable to the preferred shares offered.

The preferred shares, when issued, will be fully paid and nonassessable. Unless otherwise indicated in the prospectus supplement relating to a particular series of preferred shares, each series of preferred shares will rank equally with each other series of preferred shares as to dividends and distributions in the event of a liquidation and, in all cases, will be senior to the common shares.

Dividend Rights. Holders of preferred shares of each series will be entitled to receive, when declared by the board of trustees, cash dividends at the rates and on the dates described in the prospectus supplement relating to the series of preferred shares, out of WRIT’s assets legally available for that purpose. The rates may be fixed or variable or both and may be cumulative, noncumulative or partially cumulative.

As long as any preferred shares are outstanding, no dividends will be declared or paid and no distributions will be made on the common shares, other than a dividend payable in common shares, unless the accrued dividends on each series of preferred shares have been fully paid or declared and set apart for payment and, if the applicable prospectus supplement so indicates, WRIT has set apart any required amounts for any sinking funds for each series of preferred shares.

When dividends are not paid in full upon any series of preferred shares and any other series of preferred shares ranking equally as to dividends with that series of preferred shares, all dividends declared upon that series of preferred shares and any other series of preferred shares ranking equally as to dividends will be paid ratably in proportion to the amount of accrued dividends to which they are entitled.

Each series of preferred shares will be entitled to dividends as described in the prospectus supplement relating to that series. Different series of preferred shares may be entitled to dividends at different dividend rates or based upon different methods of determination.

Rights Upon Liquidation. Upon any voluntary or involuntary liquidation, dissolution or winding up of WRIT, the holders of each series of preferred shares will be entitled to receive out of the assets of WRIT available for distribution to shareholders the amount stated or determined on the basis described in the prospectus supplement relating to that series. If, upon any voluntary or involuntary liquidation, dissolution or winding up of WRIT, the amounts payable on the preferred shares of any series and any other shares of WRIT ranking as to distribution equally with that series of preferred shares are not paid in full, the holders of preferred shares of that series and of the other shares will share ratably in any distribution of assets of WRIT in proportion to the full preferential amounts to which they are entitled or on another basis as described in the applicable prospectus supplement. Any rights of the holders of any series of preferred shares to participate in the assets of WRIT remaining after the holders of other series of preferred shares have been paid their liquidation preferences upon any liquidation, dissolution or winding up of WRIT will be described in the prospectus supplement relating to that series.

Redemption. Subject to the terms of WRIT’s outstanding debt, a series of preferred shares may be redeemable, in whole or in part, at the option of WRIT or the option of the holder. In each case, the applicable prospectus supplement will describe the terms of any redemption rights including the number of shares, the price, the dates and the type of consideration.

If, after giving notice of redemption to the holders of a series of preferred shares, WRIT deposits with a designated bank funds sufficient to redeem those preferred shares, then after that deposit, all preferred shares called for redemption will no longer be outstanding for any purpose, other than the right to receive the redemption price and the right to convert those preferred shares into other classes of capital stock of WRIT.

Conversion Rights. A series of preferred shares may be convertible. The prospectus supplement for any series of preferred shares will describe the terms on which shares of that series may be converted into common shares or any other security issuable by WRIT.

Voting Rights. A holder of preferred shares will not be entitled to vote except as indicated in the prospectus supplement relating to a particular series of preferred shares or except as expressly required by Maryland law. Voting rights would be limited. The board of trustees may not establish a series of preferred shares having voting rights in addition to the following:

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Except as indicated otherwise in the prospectus supplement relating to a particular series of preferred shares, each full share will be entitled to one vote on matters on which holders of preferred shares are entitled to vote and fractional shares will not be entitled to any vote.

Transfer Agent and Registrar. WRIT will select the transfer agent, registrar and dividend disbursement agent for a series of preferred shares, which will be described in the applicable prospectus supplement. The registrar for preferred shares will send notices to shareholders of any meetings at which holders of preferred shares have the right to vote on any matter.

Business Combination Provisions

WRIT’s declaration of trust provides that any merger, consolidation or liquidation of WRIT, or any sale of all or substantially all of its assets, must be approved by a majority of WRIT’s trustees. In addition, if any of those transactions involves a related shareholder, the transaction must be approved by a majority of trustees not appointed or nominated by or acting on behalf of the related shareholder or an affiliate or associate of the related shareholder. A related shareholder is a person or entity beneficially owning, directly or indirectly, 5% or more of the outstanding shares, including among his or its shares those owned by an affiliate or associate.

As permitted by Maryland law, WRIT has expressly elected to be governed by the special voting requirements of Title 3, Subtitle 6, of the Maryland Corporations and Associations Article, which we refer to as the Special Voting Article. The Special Voting Article establishes special requirements with respect to a business combination between an interested stockholder and a Maryland corporation unless exemptions are applicable. The Special Voting Article prohibits a merger and other specified or similar transactions between a Maryland corporation and an interested stockholder for a five-year period and requires a super majority vote for those transactions after the end of the five-year period. For the purposes of the Special Voting Article and the Control Share Article, which we describe below, a Maryland corporation includes a Maryland real estate investment trust. We refer to them collectively in this section as a Maryland company.

An interested stockholder is a person owning beneficially, directly or indirectly, 10% or more of the outstanding voting stock of a Maryland company. Business combinations include any merger or similar transaction subject to a statutory vote and additional transactions involving transfers of assets or securities in specified amounts to interested stockholders or their affiliates.

Unless an exemption is available, a business combination may not be consummated between a Maryland company and an interested stockholder for a period of five years after the date on which the shareholder became an interested stockholder. After that five-year period, a business combination may not be consummated unless recommended by the board of the Maryland company and approved by the affirmative vote of at least 80% of the votes entitled to be cast by all holders of outstanding shares of voting stock and 66 ²/3% of the votes entitled to be cast by all holders of outstanding shares of voting stock other than the interested stockholder. These provisions do not apply if the company’s stockholders receive a minimum price, as defined in the Special Voting Article, for their shares and they receive the consideration in cash or in the same form as previously paid by the interested stockholder for its shares and if other conditions are met.

A business combination with an interested stockholder that is approved by the board of a Maryland company at any time before an interested stockholder first becomes an interested stockholder is not subject to the special voting requirements or fair price provisions of the Special Voting Article. An amendment to a Maryland company’s charter electing not to be subject to the foregoing requirements must be approved by the affirmative vote of at least 80% of the votes entitled to be cast by all holders of outstanding

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shares of voting stock and 66 ²/3 % of the votes entitled to be cast by holders of outstanding shares of voting stock who are not interested stockholders. The amendment will not be effective until 18 months after the vote of stockholders and does not apply to any business combination of a company with a stockholder who was an interested stockholder on the date of the stockholder vote.

As permitted by Maryland law, WRIT has also expressly elected to be governed by the control share provisions of Title 3, Subtitle 7, of the Maryland Corporations and Associations Article, which we refer to as the Control Share Article. Under the Control Share Article, control shares of a Maryland company acquired in a control share acquisition have no voting rights except to the extent approved by a vote of two-thirds of the votes entitled to be cast on the matter, excluding shares of stock owned by the acquiror or by officers or directors who are employees of the company. Control shares are voting shares of stock that, if aggregated with all other shares of stock previously acquired by the acquiror, would entitle the acquiror to exercise voting power in electing directors or trustees within one of the following ranges of voting power: (1) 20% or more but less than 33 ¹/3%, (2) 33 ¹/3% or more but less than a majority or (3) a majority of all voting power. Control shares do not include shares the acquiring person is then entitled to vote as a result of having previously obtained shareholder approval. A control share acquisition is, subject to specified exceptions, the acquisition of, ownership of or the power to direct the exercise of voting power with respect to control shares.

A person who has made or proposes to make a control share acquisition upon satisfaction of specified conditions, including an undertaking to pay expenses, may compel the board of directors to call a special meeting of shareholders to be held within 50 days of demand to consider the voting rights of the shares. If no request for a meeting is made, the Maryland company may itself present the question at any shareholders’ meeting.

If voting rights for control shares are not approved at the meeting or if the acquiring person does not deliver an acquiring person statement as permitted by the statute, then subject to specified conditions and limitations, the Maryland company may redeem any or all of the control shares, except those for which voting rights have previously been approved, for fair value, without regard to the absence of voting rights for the control shares. Fair value will be determined as of the date of the meeting of the shareholders at which the voting rights of the control shares are considered but not approved. If no meeting is held, fair value will be determined as of the date of the last acquisition of control shares by the acquiring person. If voting rights for control shares are approved at a shareholders’ meeting and the acquiror becomes entitled to a majority of the shares entitled to vote, all other shareholders may exercise appraisal rights. The fair value of the shares as determined for purposes of the appraisal rights may not be less than the highest price per share paid in the control share acquisition. Some limitations and restrictions otherwise applicable to the exercise of dissenters’ rights do not apply in the context of a control share acquisition.

The Control Share Article does not apply to

The Special Voting Article and the Control Share Article may have the effect of discouraging unilateral tender offers or other takeover proposals, which some shareholders might consider in their interests or that might provide a substantial premium for their shares. The Control Share Article in particular has the effect of making a unilateral tender offer or other takeover of WRIT more difficult. The provisions could also have the effect of insulating current management against the possibility of removal and could, by possibly reducing temporary fluctuations in market price caused by accumulations of shares, deprive shareholders of opportunities to sell their shares at a temporarily higher market price.

Restrictions on Ownership

For WRIT to qualify as a REIT under the Internal Revenue Code, in any taxable year, not more than 50% in value of WRIT’s outstanding shares may be owned, directly or indirectly, by five or fewer individuals during the last six months of the year, and the shares must be owned by 100 or more persons during at least 335 days of a taxable year or a proportionate part of a taxable year less than 12 months. To meet these and other requirements, the trustees have the power to redeem or prohibit the transfer of a sufficient number of shares to maintain or bring the ownership of the shares into conformity with the requirements. In that regard, the declaration of trust provides that if any person is or becomes at any time the beneficial owner, directly or indirectly, of more than 10% of WRIT’s outstanding shares or if WRIT’s tax status is or can be endangered by the purchase or retention of shares by any person, the trustees may in their sole discretion (1) repurchase any or all shares held by that person or (2) refuse to sell, transfer or deliver shares to that person. A preferred shares amendment would amend this provision in the declaration of trust to clarify that the 10% threshold applies to all of the outstanding shares computed on the basis of the value of the shares.

The purchase price for any shares repurchased will be (1) the cost or the last sale price of the shares as of the date immediately preceding the day on which the demand for repurchase is mailed, whichever price is higher, or (2) the amount provided in the terms of that class or series of shares called for repurchase, if a preferred shares amendment is adopted. From the date fixed for repurchase by the trustees, and so long as payment of the purchase price for the shares to be repurchased has been made or provided for, the holder

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of any shares called for repurchase will cease to be entitled to distributions, voting rights and other benefits with respect to those shares, except the right to payment of the purchase price for the shares.

The declaration of trust includes provisions to ensure that any rent paid to WRIT by a sister corporation not become disqualified as rent from real property by virtue of Section 856(d)(2)(B) of the Internal Revenue Code. For purposes of these provisions, a sister corporation is a corporation the shares of which are owned by exactly or substantially the same persons and in exactly or substantially the same numbers as are the shares of WRIT. Under these provisions, if the trustees, at any time and in good faith, are of the opinion that direct or indirect ownership of shares has or may become concentrated to an extent that would cause any rent to be paid to WRIT by a sister corporation, if one existed, to fail to qualify or be disqualified as rent from real property by virtue of Section 856(d)(2)(B) of the Internal Revenue Code, the trustees have the power

These provisions will apply even if a sister corporation does not exist (1) at the time the trustees determine that the ownership of shares has or may become so concentrated, or (2) at the time the trustees call shares for purchase or refuse to register the transfer of shares. The purchase price for the shares purchased under these provisions will be equal to

From the date fixed for purchase by the trustees, the holder of any shares called for purchase will cease to be entitled to dividends, voting rights and other benefits with respect to those shares, except the right to payment of the purchase price fixed as described above.

To further assure that ownership of the shares does not become concentrated, the declaration of trust provides that if any transfer of shares would prevent amounts received by WRIT from a sister corporation, if one existed, from qualifying as rents from real property as defined in Section 856(d) of the Internal Revenue Code, by virtue of the application of Section 856(d)(2)(B) of the Internal Revenue Code, the transfer will be void from inception and the intended transferee of the shares will be treated as never having had an interest in those shares. If this provision is invalid by virtue of any legal decision, statute, rule or regulation, then the transferee of the shares will be treated as having acted as an agent on behalf of WRIT in acquiring those shares and as holding those shares on WRIT’s behalf. Furthermore, the declaration of trust provides that shareholders will be required upon demand to disclose to the trustees in writing information with respect to their direct and indirect ownership of the shares that the trustees deem necessary to determine whether WRIT satisfies the provisions of Sections 856(a)(5) and (6) and Section 856(d) of the Internal Revenue Code or the regulations under such sections or to comply with the requirements of any other taxing authority.

Under an amendment to the declaration of trust, a provision has been added to the declaration of trust specifying that (1) the share ownership limitation provisions described above, or any other provision of the declaration of trust, will not preclude the settlement of any transaction entered through the facilities of the New York Stock Exchange or any other national securities exchange or automated inter-dealer quotation system and (2) the occurrence of the settlement of any transaction will not negate the effect of the share ownership limitation provisions or any other provision of the declaration of trust.

The share ownership limitation provisions, like the business combination provisions, may deter or render more difficult an attempt by a third party to obtain control of WRIT if the attempt is not supported by the board of trustees.

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DESCRIPTION OF COMMON SHARE WARRANTS

WRIT may issue common share warrants for the purchase of common shares. WRIT may issue common share warrants independently or together with any other offered securities offered by any prospectus supplement. Common share warrants may be attached to or separate from the other offered securities. Each series of common share warrants will be issued under a separate warrant agreement to be entered into between WRIT and a warrant agent identified in the applicable prospectus supplement. The warrant agent will act solely as an agent of WRIT in connection with the common share warrants of a series and will not assume any obligation or relationship of agency or trust for any holders or beneficial owners of common share warrants.

The applicable prospectus supplement will describe the terms of the common share warrants, including, where applicable, the following:

DESCRIPTION OF DEBT SECURITIES

General

WRIT will issue senior debt securities under a senior indenture dated as of August 1, 1996, as supplemented from time to time, between WRIT and The Bank of New York Trust Company, N.A., as senior indenture trustee, or pursuant to an additional indenture adopted by us in the future. WRIT will issue subordinated debt securities under a subordinated indenture between WRIT and a commercial bank we will select to act as subordinated indenture trustee. We use the term indenture trustee to refer to the senior indenture trustee or subordinated indenture trustee, as appropriate. We refer to the senior indenture and the subordinated indenture together as the indentures and individually as an indenture. The senior indenture and the form of the subordinated indenture are filed as exhibits to the registration statement of which this prospectus is a part. The indentures will be available for inspection at the corporate trust offices of the senior indenture trustee and the subordinated indenture trustee and as described below under “Where You Can Find More Information.” The indentures are subject to and governed by the Trust Indenture Act of 1939.

We describe below some of the terms of the debt securities and some of the provisions of the indentures. We will describe in a prospectus supplement the specific terms of the debt securities and the extent to which the provisions described below apply. The descriptions in this prospectus and the applicable prospectus supplement are not complete and may not contain all of the information that may be important to you. To obtain further information, you should refer to the provisions of the indentures and the debt securities. We have included in this prospectus references to sections of the indentures to help you locate those provisions in the indentures.

Terms

The debt securities will be direct, unsecured obligations of WRIT. The senior debt securities will rank equally with all other unsecured and unsubordinated debt of WRIT. Payments on the subordinated debt securities will be subordinated to the prior payment in full of WRIT’s senior debt, as described in this section under “Subordination.” Each indenture provides that WRIT may issue debt securities without limit as to aggregate principal amount, in one or more series, in each case as established from time to time in, or

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under authority granted by, a resolution of WRIT’s board of trustees or as established in one or more supplemental indentures. WRIT may issue debt securities with terms different from those of debt securities previously issued. Debt securities of one series may be issued at different times and, unless otherwise provided, a series may be reopened, without the consent of the holders of the debt securities of that series, for issuances of additional debt securities of that series. (Section 301 of each indenture).

More than one indenture trustee may be appointed under either indenture, with each indenture trustee acting as to one or more series of debt securities. Any indenture trustee may resign or be removed as to one or more series of debt securities, and a successor indenture trustee may be appointed to act regarding that series. (Section 608 of each indenture). If two or more persons are appointed as indenture trustee regarding different series of debt securities, each will act under the applicable indenture as an indenture trustee of a trust separate from the trust administered by any other indenture trustee. (Section 609 of each indenture). Except as otherwise indicated in this prospectus, an indenture trustee may act only with respect to the one or more series of debt securities for which it is indenture trustee under the applicable indenture.

The prospectus supplement relating to the series of debt securities being offered will contain information on the specific terms of the debt securities including:

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WRIT may issue debt securities at a discount below their principal amount. If that occurs, the debt securities may provide for less than their entire principal amount to be payable upon declaration of acceleration of the maturity of the debt securities. We refer to those debt securities as original issue discount securities. The applicable prospectus supplement will describe the special U.S. federal income tax, accounting and other considerations applicable to original issue discount securities.

Except as described below under “Covenants” and as may be described in any prospectus supplement, the indentures will not contain any provisions

The applicable prospectus supplement will provide information regarding any deletions from, modifications of, or additions to the events of default or covenants of WRIT that are described below, including any addition of a covenant or other provision providing protection for risks similar to those referred to above.

Denominations, Interest, Registration and Transfer

Unless otherwise described in the applicable prospectus supplement, the debt securities of any series issued in registered form will be issuable in denominations of $1,000 and integral multiples of $1,000, and the debt securities of any series issued in bearer form will be issuable in denominations of $5,000. (Section 302 of each indenture).

Unless otherwise described in the applicable prospectus supplement, the principal of, any premium and interest on any series of senior debt securities will be payable at the corporate trust office of the senior indenture trustee, which initially will be c/o The Bank of New York Trust Company, N.A., 4 New York Plaza, First Floor, New York, New York 10004. Unless otherwise described in the applicable prospectus supplement, the principal of, any premium and interest on any series of subordinated debt securities will be payable at the corporate trust office of the subordinated indenture trustee. WRIT may instead pay interest on any series of debt securities by check mailed to the address of the person entitled to the payment as it appears in the applicable register for the debt securities or by wire transfer of funds to that person at an account maintained within the United States. (Sections 301, 307 and 1002 of each indenture).

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Any interest not punctually paid or duly provided for on any interest payment date will cease to be payable to the holder of the debt security on the applicable regular record date and may be paid to the person in whose name the debt security is registered at the close of business on a special record date for the payment of defaulted interest to be fixed by the indenture trustee. If that occurs, notice will be given to the holder of the debt security not less than 10 days prior to the special record date. Alternatively, defaulted interest may be paid at any time in any other lawful manner. (Section 307 of each indenture).

Subject to limitations imposed upon debt securities issued in book-entry form, the debt securities of any series will be exchangeable for other debt securities of the same series and of a like aggregate principal amount and tenor of different authorized denominations upon surrender of the debt securities at the corporate trust office of the applicable indenture trustee. In addition, subject to limitations imposed upon debt securities issued in book-entry form, the debt securities of any series may be surrendered for conversion, registration of transfer or exchange at the corporate trust office of the applicable indenture trustee. Every debt security surrendered for conversion, registration of transfer or exchange must be properly endorsed or accompanied by a written instrument of transfer. No service charge will be made for any registration of transfer or exchange of any debt securities, but WRIT may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection with the registration of transfer or exchange. (Section 305 of each indenture). If WRIT designates a transfer agent, in addition to the applicable indenture trustee, regarding any series of debt securities, WRIT may at any time rescind the designation of the transfer agent or approve a change in the location through which the transfer agent acts, but WRIT is required to maintain a transfer agent in each place of payment for each series of debt securities. WRIT may at any time designate additional transfer agents regarding any series of debt securities. (Section 1002 of each indenture).

Neither WRIT nor any indenture trustee will be required to:

Merger, Consolidation or Sale

WRIT will be permitted to consolidate with, or sell, lease or convey all or substantially all of its assets to, or merge with or into, any other entity if:

Covenants

In this part of the prospectus, we use several capitalized terms to refer to defined terms. We describe the definitions of those terms after the paragraph in which we use them for the first time. The senior indenture provides for the following covenants, which we may modify or delete upon the issuance of any series of senior debt securities:

Senior Indenture Limitations on Incurrence of Debt. The senior indenture provides that WRIT will not, and will not permit any Subsidiary to, incur any additional Debt if, immediately after giving effect to the incurrence of the additional Debt and the application of the proceeds from the incurrence of the additional Debt, the aggregate principal amount of all outstanding Debt of WRIT and its Subsidiaries on a consolidated basis determined in accordance with generally accepted accounting principles (GAAP) is greater than 65% of the sum of, without duplication:

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“Subsidiary” means a corporation, partnership or limited liability company, a majority of the outstanding voting stock, partnership interests or membership interests of which is owned or controlled, directly or indirectly, by WRIT or by one or more other Subsidiaries of WRIT. For the purposes of this definition, “voting stock” means stock having voting power for the election of directors or trustees, whether at all times or only so long as no senior class of stock has the voting power by reason of any contingency.

“Debt” of WRIT or any Subsidiary means any debt of WRIT or any Subsidiary, whether or not contingent, in connection with:

“Disqualified Stock” means any Capital Stock that by its terms, or by the terms of any security into which it is convertible or for which it is exchangeable or exercisable, upon the happening of any event or otherwise:

“Capital Stock” means any capital stock, including preferred stock, shares, interests, participations or other ownership interests however designated and any rights, other than debt securities convertible into or exchangeable for corporate stock, warrants or options to purchase.

“Total Assets” as of any date means the sum of

“Capitalized Property Value” as of any date means the aggregate sum of all Property EBITDA for each such property for the prior four quarters and capitalized at seven and one-half percent (7.5%).

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“Property EBITDA” is defined as, for any period of time, without duplication, net earnings (loss), excluding net derivative gains (losses) and gains (losses) on dispositions of real estate, before deductions for WRIT and its Subsidiaries (including amounts reported in discontinued operations) for (i) interest expense (including prepayment penalties); (ii) provision for taxes based on income; (iii) depreciation, amortization and all other non-cash items, as determined in good faith by WRIT, deducted in arriving at net income (loss); (iv) extraordinary items; (v) non-recurring items, as determined in good faith by WRIT; and (vi) minority interest. In each case for such period, amounts will be as reasonably determined by WRIT in accordance with GAAP, except to the extent GAAP is not applicable with respect to the determination of non-cash and non-recurring items. For purposes of this definition, Property EBITDA will not include WRIT’s general and administrative expenses and other trust expenses such as land holding costs, employee and trustee stock and stock option expense and pursuit cost write-offs as determined in good faith by WRIT.

“Stabilized Property” means (i) with respect to an acquisition of an income producing property, a property becomes stabilized when WRIT or its Subsidiaries have owned the property for at least four (4) full quarters and (ii) with respect to new construction or redevelopment property, a property becomes stabilized four (4) full quarters after the earlier of (a) eighteen (18) months after substantial completion of construction or redevelopment, and (b) the quarter in which the physical occupancy level of the property is at least ninety-three percent (93%).

In addition to the limitations on the incurrence of Debt described above, the senior indenture provides that WRIT will not, and will not permit any Subsidiary to, incur any Secured Debt, whether owned at the date of the senior indenture or subsequently acquired, if, immediately after giving effect to the incurrence of the additional Secured Debt and the application of the proceeds, the aggregate principal amount of all outstanding Secured Debt of WRIT and its Subsidiaries on a consolidated basis is greater than 40% of WRIT’s Adjusted Total Assets. (Section 1011 of the senior indenture.) “Secured Debt” means any Debt secured by any mortgage, lien, charge, pledge, encumbrance or security interest of any kind upon any of the property of WRIT or any Subsidiary.

The senior indenture also provides that WRIT will not, and will not permit any Subsidiary to, incur any additional Debt if the ratio of Consolidated Income Available for Debt Service to the Annual Service Charge for the four consecutive fiscal quarters most recently ended before the date on which the additional Debt is to be incurred is less than 1.5 to 1.0, on a pro forma basis after giving effect to the incurrence of that Debt and to the application of the proceeds from the incurrence of that Debt. The ratio is calculated assuming that:

“Consolidated Income Available for Debt Service” for any period means Consolidated Net Income of WRIT and its Subsidiaries

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“Consolidated Net Income” for any period means the amount of consolidated net income or loss of WRIT and its Subsidiaries for that period determined on a consolidated basis in accordance with generally accepted accounting principles.

“Annual Service Charge” as of any date means the maximum amount that is payable in any period for interest on, and original issue discount of, Debt of WRIT and its Subsidiaries.

“Acquired Debt” means Debt of a person

in each case, other than Debt incurred in connection with, or in contemplation of, the person becoming a Subsidiary or the acquisition. Acquired Debt will be treated as incurred on the date of the related acquisition of assets from any person or the date the acquired person becomes a Subsidiary.

For purposes of the provisions limiting the incurrence of Debt, Debt is treated as incurred by WRIT or a Subsidiary whenever WRIT or a Subsidiary creates, assumes, guarantees or otherwise becomes liable on the Debt.

Maintenance of Total Unencumbered Assets. The senior indenture also provides that WRIT is required to maintain Total Unencumbered Assets of not less than 150% of the aggregate outstanding principal amount of WRIT’s Unsecured Debt. (Section 1012 of the senior indenture).

“Total Unencumbered Assets” means the sum of

“Encumbrance” means any mortgage, security interest, pledge, hypothecation, assignment, deposit arrangement, encumbrance, statutory or other lien or preference, priority or other security agreement, except:

The defined terms “Total Assets,” “Capitalized Property Value,” “Property EBITDA,” and “Stabilized Property” have the same meanings as set forth above in the section entitled “Senior Indenture Limitations on Incurrence of Debt.”

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“Unsecured Debt” means Debt of WRIT or any Subsidiary that is not secured by any mortgage, lien, charge, pledge or security interest of any kind upon any of the properties owned by WRIT or any of its Subsidiaries.

Existence. Except as described under the section below entitled “Merger, Consolidation or Sale,” WRIT will be required to do everything necessary to preserve and keep in full force and effect its existence, rights and franchises. But WRIT will not be required to preserve any right or franchise if it determines that the preservation of the right or franchise is no longer desirable in the conduct of its business. (Section 1004 of each indenture).

Maintenance of Properties. To the extent WRIT believes it necessary for the proper conduct of business, WRIT will be required to keep all of its material properties used in the conduct of its business or the business of any Subsidiary in good condition, repair and working order and supplied with all necessary equipment and to make all necessary repairs and improvements of those properties. (Section 1005 of each indenture).

Insurance. WRIT will be required to, and will be required to cause each of its Subsidiaries to, keep all of its insurable properties insured against loss or damage at least equal to their then full insurable value with insurers of recognized responsibility and, if described in the applicable prospectus supplement, having a specified rating from a recognized insurance rating service. (Section 1006 of each indenture).

Payment of Taxes and Other Claims. WRIT will be required to pay or discharge before they become delinquent (1) all taxes, assessments and governmental charges levied or imposed upon it or any Subsidiary or upon the income, profits or property of WRIT or any Subsidiary, and (2) all lawful claims for labor, materials and supplies that, if unpaid, might by law become a material lien upon the property of WRIT or any Subsidiary. But WRIT will not be required to pay or discharge any tax, assessment, charge or claim whose amount, applicability or validity is being contested in good faith. (Section 1007 of each indenture).

Provision of Financial Information. Whether or not WRIT is subject to Section 13 or 15(d) of the Securities Exchange Act, WRIT will be required, within 15 days of each of the dates by which WRIT would have been required to file annual reports, quarterly reports and other documents with the SEC if WRIT were subject to those sections, to

Additional Covenants. The prospectus supplement will describe any additional covenants of WRIT relating to any series of debt securities.

Events of Default, Notice and Waiver

Unless otherwise specified in the applicable prospectus supplement, each of the following is an Event of Default with respect to any series of debt securities issued under either indenture:

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“Significant Subsidiary” means any Subsidiary that meets any of the following:

If an Event of Default occurs and continues under any indenture relating to debt securities of any series at the time outstanding, then the indenture trustee or the holders of 25% or more in principal amount of the outstanding debt securities of that series may declare the principal amount of, and any premium on, all of the debt securities of that series to be due and payable immediately. If the debt securities of that series are original issue discount securities or indexed securities, then only the portion of the principal amount as may be specified in the terms of those securities plus any premium on those securities may be declared due and payable. To declare an acceleration, an indenture trustee must provide written notice to WRIT. If the holders declare an acceleration, they must provide written notice to WRIT and to the indenture trustee.

At any time after a declaration of acceleration relating to debt securities of a series, or of all debt securities then outstanding under the applicable indenture, has been made, but before a judgment or decree for payment of the money due has been obtained by the indenture trustee, the holders of a majority in principal amount of outstanding debt securities of the series, or of all debt securities then outstanding under the applicable indenture, may rescind the declaration and its consequences if:

The holders of a majority in principal amount of the outstanding debt securities of any series, or of all debt securities then outstanding under the applicable indenture, may waive any past default relating to that series and its consequences, except a default (1) in the payment of the principal of or any premium, interest or additional amounts payable on any debt security of that series or (2) relating to a covenant or provision contained in the applicable indenture that cannot be modified or amended without the consent of the holder of each outstanding debt security affected. (Section 513 of each indenture).

Each indenture trustee will be required to give notice to the holders of debt securities within 90 days of a default under the applicable indenture unless the default has been cured or waived. But the indenture trustee may withhold notice to the holders of any series of debt securities of any default relating to that series, except a default in the payment of the principal of, any premium, interest or additional amount payable on any debt security of that series or in the payment of any sinking fund installment relating to any security of that series, if specified responsible officers of the indenture trustee consider withholding notice to be in the interest of the holders of that series. (Section 601 of each indenture).

No holder of debt securities of any series may institute any proceeding, judicial or otherwise, relating to the indenture or for any remedy under the indenture, unless the indenture trustee fails to act within 60 days after it has received a written request to institute proceedings relating to a continuing Event of Default from the holders of 25% or more in principal amount of the outstanding debt

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securities of that series, as well as an offer of indemnity reasonably satisfactory to it. (Section 507 of each indenture). But this provision does not prevent any holder of debt securities from instituting suit to enforce payment of the principal of and any premium, interest and additional amount payable on the debt securities on the due dates of those payments. (Section 508 of each indenture).

Subject to provisions in each indenture relating to the indenture trustee’s duties if a default occurs, each indenture trustee will not be obligated to exercise any of its rights or powers under the applicable indenture at the request or direction of any holders of any series of debt securities then outstanding under the indenture, unless the holders have offered to the indenture trustee reasonable security or indemnity. (Section 602 of each indenture). The holders of a majority in principal amount of the outstanding debt securities of any series, or of all debt securities then outstanding under the applicable indenture, will have the right to direct the time, method and place of conducting any proceeding for any remedy available to the indenture trustee, or of exercising any trust or power conferred upon the indenture trustee. But an indenture trustee may refuse to follow any direction that (1) is in conflict with any law or the indenture, (2) may involve the indenture trustee in personal liability or (3) may be unduly prejudicial to the holders of debt securities of that series not joining in the direction. (Section 512 of each indenture).

Within 120 days after the close of each fiscal year, WRIT will be required to deliver to each indenture trustee a certificate, signed by one of several specified officers of WRIT, stating whether that officer has knowledge of any default under the applicable indenture and, if so, specifying each known default and its nature and status. (Section 1009 of each indenture).

Modification of the Indentures

Each indenture may be modified or amended only with the consent of (i) the holders of a majority in principal amount of all outstanding debt securities affected by the modification or amendment and (ii) the holders of a majority in principal amount of all outstanding debt securities of each series affected by the modification or amendment. But no modification or amendment may, without the consent of the holder of each debt security affected by the modification or amendment:

The holders of a majority in principal amount of outstanding debt securities issued under either indenture may waive compliance by WRIT with specified covenants and conditions in the indenture. (Section 1013 of each indenture).

WRIT and the applicable indenture trustee may modify or amend each indenture without the consent of any holder of debt securities for any of the following purposes:

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Each indenture provides that in determining whether the holders of the requisite principal amount of outstanding debt securities of a series have given any request, demand, authorization, direction, notice, consent or waiver under the indenture or whether a quorum is present at a meeting of holders of debt securities,

Each indenture contains provisions for convening meetings of the holders of debt securities of a series. (Section 1501 of each indenture). A meeting may be called at any time by the applicable indenture trustee, and also, upon request, by WRIT or the holders of at least 10% in principal amount of the outstanding debt securities of that series, if notice is given as provided in the applicable indenture. (Section 1502 of each indenture).

Any resolution presented at a meeting or adjourned meeting properly reconvened at which a quorum is present may be adopted by the affirmative vote of the holders of a majority in principal amount of the outstanding debt securities of that series. But any resolution relating to any request or demand that may be made, notice or consent that may be given, or waiver or action that may be taken by the holders of a specified percentage, which is less than a majority in principal amount of the outstanding debt securities of a series, may be adopted at a meeting or adjourned meeting properly reconvened at which a quorum is present by the affirmative vote of the holders of that specified percentage in principal amount of the outstanding debt securities of that series. The provisions described above in this paragraph do not apply to those situations where modifications or amendments of the applicable indenture require the consent of the holders of each debt security affected. (Section 1504 of each indenture).

Any resolution passed or decision taken at any meeting of holders of debt securities of any series properly held in accordance with the applicable indenture will be binding on all holders of debt securities of that series. The quorum at any meeting called to adopt a resolution, and at any reconvened meeting, will be persons holding or representing a majority in principal amount of the outstanding debt securities of a series. But if any action is to be taken at the meeting relating to a consent or waiver that may be given by the holders of not less than a specified percentage in principal amount of the outstanding debt securities of a series, the persons holding or representing that specified percentage in principal amount of the outstanding debt securities of that series will constitute a quorum (Section 1504 of each indenture).

Despite the foregoing provisions, if any action is to be taken at a meeting of holders of debt securities of any series relating to any request, demand, notice, consent, waiver or other action that the indenture expressly provides may be made, given or taken by the holders of a specified percentage in principal amount of all outstanding debt securities affected by that action, or of the holders of that series and one or more additional series:

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Subordination

Upon any distribution to creditors of WRIT in a liquidation, dissolution or reorganization, the payment of the principal of and interest on the subordinated debt securities will be subordinated, to the extent provided in the subordinated indenture, to the prior payment in full of all Senior Debt, which we define below. (Sections 1601 and 1602 of the subordinated indenture). But WRIT’s obligation to make payment of the principal and interest on the subordinated debt securities will not otherwise be affected. (Section 1608 of the subordinated indenture). No payment of principal or interest may be made on the subordinated debt securities at any time if a default on Senior Debt exists that permits the holders of the Senior Debt to accelerate its maturity and the default is the subject of judicial proceedings or WRIT receives notice of the default. (Section 1603 of the subordinated indenture). After all Senior Debt is paid in full and until the subordinated debt securities are paid in full, holders will be subrogated to the rights of holders of Senior Debt to the extent that distributions otherwise payable to holders of the subordinated debt have been applied to the payment of Senior Debt. (Section 1607 of the subordinated indenture). By reason of the subordination, if assets are distributed upon insolvency, some general creditors of WRIT may recover more, ratably, than holders of the subordinated debt securities.

“Senior Debt” as defined in the subordinated indenture means the principal of and interest on, or substantially similar payments to be made by WRIT regarding the following, whether outstanding at the date of execution of the subordinated indenture or subsequently incurred, created or assumed:

At March 31, 2009, Senior Debt aggregated approximately $1,351 million in principal amount. The subordinated indenture does not restrict the creation of additional Senior Debt. But the senior indenture contains limitations on WRIT’s incurrence of indebtedness. See “Covenants—Senior Indenture Limitations on Incurrence of Debt.”

Discharge, Defeasance and Covenant Defeasance

Under each indenture, WRIT may discharge obligations to holders of any series of debt securities issued under the indenture that have not already been delivered to the applicable indenture trustee for cancellation and that either have become due and payable or will become due and payable within one year. To do so WRIT must irrevocably deposit in trust with the applicable indenture trustee, funds in currencies, currency units or composite currencies in which those debt securities are payable in an amount sufficient to pay the entire debt on those debt securities including principal, any premium, interest and any additional amounts payable to the date of the deposit, if the debt securities have become due and payable, or, if they have not, to the stated maturity or redemption date. (Section 401 of each indenture).

Each indenture provides that, if specified provisions of the indenture are made applicable to the debt securities of or within any series, WRIT may elect either:

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To elect defeasance or covenant defeasance, WRIT must irrevocably deposit in trust with the applicable indenture trustee, an amount sufficient to pay the principal of, any premium and interest on those debt securities, and any mandatory sinking fund or similar payments, on the scheduled due dates. The amount deposited may be in currencies, currency units or composite currencies in which those debt securities are payable at stated maturity, or Government Obligations, which we define below, or both. But the scheduled payment of principal and interest on any Government Obligations deposited must be before the scheduled due date of the principal of, any premium and interest on the debt securities. (Section 1404 of each indenture).

“Government Obligations” means securities that are:

A defeasance trust or covenant defeasance trust may be established only if WRIT has delivered to the applicable indenture trustee an opinion of counsel, as specified in each indenture, to the effect that the holders of the defeased debt securities will not recognize income, gain or loss for United States federal income tax purposes as a result of the defeasance or covenant defeasance and will be subject to United States federal income tax on the same amounts, in the same manner and at the same times as would have been the case if the defeasance or covenant defeasance had not occurred. In the case of defeasance, the opinion of counsel must also refer to and be based upon a ruling of the Internal Revenue Service or a change in applicable United States federal income tax law occurring after the date of the indenture. (Section 1404 of each indenture).

Unless otherwise described in the applicable prospectus supplement, if after WRIT has deposited funds or Government Obligations or both to effect defeasance or covenant defeasance relating to debt securities of any series, (1) the holder of a debt security of the series is entitled to, and does, under specified provisions of the indenture or the terms of the debt security, elect to receive payment in a currency, currency unit or composite currency other than that in which the deposit has been made, or (2) a Conversion Event, which we define below, occurs in regard to the currency, currency unit or composite currency in which the deposit has been made, the debt represented by the debt security will be treated as fully discharged and satisfied through the payment of the principal of, any premium, and interest on the debt security as they become due out of the proceeds yielded by converting the amount so deposited into the currency, currency unit or composite currency in which the debt security becomes payable as a result of the election or the Conversion Event based on the applicable market exchange rate. (Section 1405 of each indenture).

“Conversion Event” means the ceasing the use of:

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Unless otherwise indicated in the applicable prospectus supplement, all payments of principal of, any premium, and interest on any debt security that is payable in a foreign currency that ceases to be used by its government of issuance will be in U.S. dollars.

If WRIT effects covenant defeasance relating to any debt securities and the debt securities are declared due and payable because an Event of Default occurs, there is a risk that the amount in the currency, currency unit or composite currency in which the debt securities are payable, and Government Obligations on deposit with the applicable indenture trustee, though sufficient to pay amounts due on the debt securities at the time of their stated maturity, may not be sufficient to pay amounts due on the debt securities at the time of the acceleration resulting from the Event of Default. But WRIT would remain liable to make payment of the amounts due at the time of acceleration.

The applicable prospectus supplement may further describe any provisions, permitting defeasance or covenant defeasance, including any modifications to the provisions described above, relating to the debt securities of or within a particular series.

Conversion rights

If the debt securities are convertible into common shares or preferred shares, the applicable prospectus supplement will describe the terms and conditions of conversion. The terms will include:

Global securities

The debt securities of a series may be issued in whole or in part in the form of one or more global securities that will be deposited with, or on behalf of, a depositary identified in the applicable prospectus supplement relating to that series. Global securities may be issued in either registered or bearer form and in either temporary or permanent form. The applicable prospectus supplement will describe the specific terms of the depositary arrangement relating to that series of debt securities.

PLAN OF DISTRIBUTION

We may sell the offered securities to one or more underwriters for public offering and sale by them or may sell the offered securities to investors directly or through agents, which agents may be affiliated with us. Direct sales to investors may be accomplished through subscription offerings or through subscription rights distributed to our shareholders. In connection with subscription offerings or the distribution of subscription rights to shareholders, if all of the underlying offered securities are not subscribed for, we may sell such unsubscribed offered securities to third parties directly or through agents and, in addition, whether or not all of the underlying offered securities are subscribed for, we may concurrently offer additional offered securities to third parties directly or through agents, which agents may be affiliated with us. Any underwriter or agent involved in the offer and sale of the offered securities will be named in the applicable prospectus supplement.

The distribution of the offered securities may be effected from time to time in one or more transactions at a fixed price or prices, which may be changed, or at prices related to the prevailing market prices at the time of sale, such as an “at the market offering,” or at negotiated prices, any of which may represent a discount from the prevailing market price. We also may, from time to time, authorize underwriters acting as our agents to offer and sell the offered securities upon the terms and conditions set forth in the applicable prospectus supplement. In connection with the sale of offered securities, underwriters may be deemed to have received compensation from us in the form of underwriting discounts or commissions and may also receive commissions from purchasers of offered securities for whom they may act as agent. Underwriters may sell offered securities to or through dealers, and such dealers may receive compensation in the form of discounts, concessions or commissions from the underwriters and/or commissions from the purchasers for whom they may act as agent.

Any underwriting compensation paid by us to underwriters or agents in connection with the offering of offered securities, and any discounts, concessions or commissions allowed by underwriters to participating dealers, will be set forth in the applicable

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prospectus supplement. Underwriters, dealers and agents participating in the distribution of the offered securities may be deemed to be underwriters, and any discounts and commissions received by them and any profit realized by them on resale of the offered securities may be deemed to be underwriting discounts and commissions, under the Securities Act. Underwriters, dealers and agents may be entitled, under agreements entered into with us, to indemnification against and contribution toward civil liabilities, including liabilities under the Securities Act. Any such indemnification agreements will be described in the applicable prospectus supplement.

If so indicated in the applicable prospectus supplement, we will authorize dealers acting as our agents to solicit offers by institutions to purchase offered securities from us at the public offering price set forth in such prospectus supplement pursuant to delayed delivery contracts providing for payment and delivery on the date or dates stated in such prospectus supplement. Each contract will be for an amount not less than, and the aggregate principal amount of offered securities sold pursuant to contracts shall be not less nor more than, the respective amounts stated in the applicable prospectus supplement. Institutions with whom contracts, when authorized, may be made include commercial and savings banks, insurance companies, pension funds, investment companies, educational and charitable institutions, and other institutions but will in all cases be subject to our approval.

Contracts will not be subject to any conditions except the purchase by an institution of the offered securities covered by its contracts shall not at the time of delivery be prohibited under the laws of any jurisdiction in the United States to which such institution is subject, and if the offered securities are being sold to underwriters, we shall have sold to such underwriters the total principal amount of the offered securities less the principal amount of the securities covered by contracts. Some of the underwriters and their affiliates may be customers of, engage in transactions with and perform services for us and our subsidiaries in the ordinary course of business.

Unless otherwise indicated in the applicable prospectus supplement, any securities issued under this prospectus will be new issues of securities with no established market. Any underwriters or agents to or through whom the securities are sold by us for public offering and sale may make a market in the securities, but the underwriters or agents will not be obligated to do so and may discontinue any market making at any time without notice. We do not know how liquid the trading market for any of our securities will be.

FEDERAL INCOME TAX CONSEQUENCES

The following discussion summarizes our taxation and the material federal income tax consequences associated with an investment in our securities. The tax treatment of security holders will vary depending upon the holder’s particular situation, and this discussion addresses only holders that hold securities as a capital asset and does not deal with all aspects of taxation that may be relevant to particular holders in light of their personal investment or tax circumstances. This section also does not deal with all aspects of taxation that may be relevant to certain types of holders to which special provisions of the federal income tax laws apply, including:

The statements in this section are based on the Internal Revenue Code of 1986, as amended (the “Code”), its legislative history, current and proposed regulations under the Code, published rulings and court decisions. This summary describes the provisions of these sources of law only as they are currently in effect. All of these sources of law may change at any time, and any change in the law may apply retroactively. We cannot assure you that new laws, interpretations of law or court decisions, any of which may take effect retroactively, will not cause any statement in this section to be inaccurate.

This section is not a substitute for careful tax planning. We urge you to consult your tax advisor regarding the specific tax consequences to you of ownership of our securities and of our election to be taxed as a REIT. Specifically, you should consult your

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tax advisor regarding the federal, state, local, foreign, and other tax consequences to you regarding the purchase, ownership and sale of our securities. You should also consult with your tax advisor regarding the impact of potential changes in the applicable tax laws.

Taxation of WRIT as a REIT

WRIT has elected to be taxed as a REIT under the Internal Revenue Code. A REIT that meets specified qualifications is relieved of federal income taxes on ordinary income and capital gains distributed to shareholders. In the opinion of Arent Fox LLP, legal counsel for WRIT, WRIT has qualified as a REIT for the years 2003-2007 and its present and contemplated method of operation will put it in a position to continue to qualify as a REIT for the fiscal year ended December 31, 2008 and the fiscal year ending December 31, 2009. You should be aware, however, that opinions of counsel are not binding upon the Internal Revenue Service or any court. In providing its opinion, Arent Fox LLP is relying, as to certain factual matters, upon the statements and representations contained in certificates provided to Arent Fox LLP by us.

Our qualification as a REIT will depend upon our continuing satisfaction of the requirements of the Code relating to qualification for REIT status. Some of these requirements depend upon actual operating results, distribution levels, diversity of share ownership, asset composition, source of income and record keeping. Accordingly, while we intend to continue to qualify to be taxed as a REIT, the actual results of our operations for any particular year might not satisfy these requirements. Arent Fox LLP will not monitor our compliance with the requirements for REIT qualification on an ongoing basis. Accordingly, no assurance can be given that the actual results of our operation for any particular taxable year will satisfy such requirements. For a discussion of the tax consequences of our failure to qualify as a REIT. See “—Failure to Qualify as a REIT” below.

The sections of the Code relating to qualification and operation as a REIT, and the federal income taxation of a REIT and its shareholders, are highly technical and complex. The following discussion sets forth only the material aspects of those sections. This summary is qualified in its entirety by the applicable Code provisions and the related rules and regulations.

As a REIT, we generally are not subject to federal income tax on the taxable income that we distribute to our shareholders. The benefit of that tax treatment is that it avoids the “double taxation,” or taxation at both the corporate and shareholder levels, that generally results from owning shares in a corporation. Our distributions, however, will generally not be eligible for (i) the lower rate of tax applicable to dividends received by an individual from a “C corporation” (as defined below) or (ii) the corporate dividends received deduction. Further, we will be subject to federal tax in the following circumstances:

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REIT Qualification

To qualify as a REIT, we must elect to be treated as a REIT, and we must meet various (a) organizational requirements, (b) gross income tests, (c) asset tests, and (d) annual dividend requirements.

Organizational Requirements. The Code defines a REIT as a corporation, trust or association:

The Code provides that the conditions described in the first through fourth bullet points above must be met during the entire taxable year and that the condition described in the fifth bullet point above must be met during at least 335 days of a taxable year of 12 months, or during a proportionate part of a taxable year of less than 12 months.

We believe that we have been organized, have operated and have issued sufficient shares to satisfy the conditions described in all seven bullet points set forth above. In addition, our charter gives our trustees the power, at their discretion, to redeem or prohibit the transfer of our shares if any person is or becomes at any time the beneficial owner of more than 10% of our shares or if our tax status as a REIT is or could be endangered by the purchase or retention of shares by any person. These powers are intended to assist us in continuing to satisfy the share ownership requirements described in the fifth and sixth bullet points set forth above and in avoiding receipt of rents from related party tenants. (See—“Rents from Real Property,” below.) These powers pertaining to our shares are described earlier under the heading “DESCRIPTION OF SHARES—Restrictions on Ownership.”

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For purposes of determining share ownership under the sixth bullet point, an “individual” generally includes a supplemental unemployment compensation benefits plan, a private foundation, or a portion of a trust permanently set aside or used exclusively for charitable purposes. An “individual,” however, generally does not include a trust that is a qualified employee pension or profit sharing trust under the federal income tax laws, and beneficiaries of such a trust will be treated as holding our shares in proportion to their actuarial interests in the trust for purposes of the sixth bullet point. However, if we were a “pension-held REIT,” special rules would apply to the taxation of a qualified employee pension plan or profit sharing trust that held more than 10% (by value) of our equity interests with respect to dividends received or deemed received from us. See “—Taxation of Tax-Exempt Holders of our Shares.”

A corporation that is a “qualified REIT subsidiary” is not treated as a corporation separate from its parent REIT. All assets, liabilities, and items of income, deduction, and credit of a “qualified REIT subsidiary” are treated as assets, liabilities, and items of income, deduction, and credit of the REIT that does not join with the REIT in making a taxable REIT subsidiary election. A “qualified REIT subsidiary” is a corporation, all of the capital stock of which is owned by the REIT. Thus, in applying the requirements described herein, any “qualified REIT subsidiary” that we own will be ignored, and all assets, liabilities, and items of income, deduction, and credit of such subsidiary will be treated as our assets, liabilities, and items of income, deduction, and credit.

An unincorporated domestic entity, such as a limited liability company, that has a single owner, generally is not treated as an entity separate from its owner for federal income tax purposes. An unincorporated domestic entity with two or more owners is generally treated as a partnership for federal income tax purposes. In the case of a REIT that is a partner in a partnership, the REIT is treated as owning its proportionate share of the assets of the partnership and as earning its allocable share of the gross income of the partnership for purposes of the applicable REIT qualification tests.

If a REIT is a partner in a partnership, Treasury Regulations provide that the REIT will be deemed to own its proportionate capital share of the assets of the partnership and will be deemed to be entitled to the income of the partnership attributable to that capital share, subject to a special rule for determining whether we own more than 10% of the value of the securities of any one issuer (the “10% of value test”). See “—REIT Qualification—Asset Tests.” For purposes of applying the 10% of value test, our allocable share of the assets of an entity that is treated as a partnership will be determined in accordance with our proportionate share of the equity interests and other securities issued by the partnership, other than certain securities specified in the Code. In addition, the character of the assets and gross income of the partnership will retain the same character in the hands of the REIT for purposes of Section 856 of the Code, including satisfying the gross income tests and the asset tests. In addition, actions taken by any entity that is either a disregarded entity (including a qualified REIT subsidiary) or partnership in which we own an interest, either directly or through one or more tiers of disregarded entities (including qualified REIT subsidiaries) or partnerships, can affect our ability to satisfy the REIT income and assets tests and the determination of whether we have net income from prohibited transactions. Accordingly, for purposes of this discussion, when we discuss our actions, income or assets we intend that to include the actions, income or assets of any entity that is either a disregarded entity (including a qualified REIT subsidiary) or a partnership for U.S. federal income tax purposes in which we maintain an interest.

Taxable REIT Subsidiaries. A taxable REIT subsidiary, or a “TRS” is any corporation in which a REIT directly or indirectly owns stock, provided that the REIT and that corporation make a joint election to treat that corporation as a taxable REIT subsidiary. The election can be revoked at any time as long as the REIT and the TRS revoke such election jointly. In addition, if a TRS holds directly or indirectly, more than 35% of the securities of any other corporation (by vote or by value), then that other corporation is also treated as a TRS. A corporation can be a TRS with respect to more than one REIT.

A TRS is subject to federal income tax at regular corporate rates (maximum rate of 35%), and may also be subject to state and local taxation. Any dividends paid or deemed paid by any one of our taxable REIT subsidiaries will also be subject to tax, either (i) to us if we do not pay the dividends received to our shareholders as dividends, or (ii) to our shareholders if we do pay out the dividends received to our shareholders. Further, the rules impose a 100% excise tax on transactions between a TRS and its parent REIT or the parent REIT’s tenants that are not conducted on an arm’s-length basis. We may hold more than 10% of the stock of a TRS without jeopardizing our qualification as a REIT notwithstanding the rule described below under “—Asset Tests” that generally precludes ownership of more than 10% (by vote or value) of any issuer’s securities. However, as noted below, in order for us to qualify as a REIT, the securities of all of the taxable REIT subsidiaries in which we have invested either directly or indirectly may not represent more than 20% (25% for taxable years beginning after July 30, 2008, as described under “—Recent Tax Law Changes”) of the total value of our assets.

We expect that the aggregate value of all of our interests in taxable REIT subsidiaries has, to date, represented, and will in the future represent, less than 20% (or 25%, as applicable) of the total value of our assets; and we will, to the extent necessary, take actions necessary to satisfy the 20% (or 25%, as applicable) value limit. We cannot, however, assure that we will always satisfy this value limit or that the IRS will agree with the value we assign to any TRS in which we own an interest.

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A TRS is not permitted to directly or indirectly operate or manage a “lodging facility” or a “health care facility.” A “lodging facility” is defined as a “(I) hotel, (II) motel, or (III) other establishment more than one-half of the dwelling units in which are used on a transient basis.” A “health care facility” is defined as a “hospital, nursing facility, assisted living facility, congregate care facility, qualified continuing care facility …, or other licensed facility which extends medical or nursing or ancillary services to patients”. We do not own an interest in any TRS that operates or manages a lodging facility or health care facility.

We may engage in activities indirectly though a TRS as necessary or convenient to avoid receiving the benefit of income or services that would jeopardize our REIT status if we engaged in the activities directly. In particular, we might engage in activities through a TRS for providing services to tenants that are non-customary and services to unrelated parties that might produce income that does not qualify under the gross income tests described below. We might also hold certain properties in a TRS if we determine such properties might not satisfy the REIT asset tests, might produce income that would not qualify for purposes of the REIT income tests, or might produce income from prohibited transactions, all as described below. We presently hold several income-producing assets through our TRSs, the income from which is subject to federal (and state) income tax. If the TRS disposes of such an asset at a gain in a taxable transaction, such gain will also be subject to federal (and state) income tax. Further, as noted above, if the TRS were to distribute such an asset to us in a tax-free distribution pursuant to which we took as our basis therein the basis that the TRS had, any “built-in gain” in the asset at that time would be subject to corporate income tax if we disposed of the asset in a taxable transaction within 10 years thereafter.

Gross Income Tests. We must satisfy two gross income tests annually to maintain our qualification as a REIT. First, at least 75% of our gross income for each taxable year must consist of defined types of income that we derive, directly or indirectly, from investments relating to real property or mortgages on real property or qualified temporary investment income. Qualifying income for purposes of that 75% gross income test generally includes:

Second, in general, at least 95% of our gross income for each taxable year must consist of income that is qualifying income for purposes of the 75% gross income test, other types of interest and dividends, gain from the sale or disposition of shares or securities or any combination of these.

Gross income from our sale of property that we hold primarily for sale to customers in the ordinary course of business is excluded from both the numerator and the denominator in both income tests. The following paragraphs discuss the specific application of the gross income tests to us.

Rents from Real Property. Rent that we receive from our real property will qualify as “rents from real property,” which is qualifying income for purposes of the 75% and 95% gross income tests, only if the following conditions are met:

More generally, the rent will not qualify as “rents from real property” if, considering the relevant lease and all of the surrounding circumstances, the arrangement does not conform with normal business practice, but is in reality used as a means of basing the rent on income or profits. We set and accept, and intend to continue to set and accept, rents which are fixed dollar amounts (and fixed percentages of receipts or sales), and not to any extent by reference to any person’s net income or profits, in compliance with the rules above.

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We do not own any stock or any assets or net profits of any lessee directly nor constructively through a 10% or more shareholder.

The rent attributable to personal property under a lease is the amount that bears the same ratio to total rent under the lease for the taxable year as the average of the fair market values of the leased personal property at the beginning and at the end of the taxable year bears to the average of the aggregate fair market values of both the real and personal property covered by the lease at the beginning and at the end of such taxable year (the “personal property ratio”). With respect to each of our leases, we believe that the personal property ratio generally is less than 15%.

If a portion of the rent we receive from a property does not qualify as “rents from real property” because the rent attributable to personal property exceeds 15% of the total rent for a taxable year, the portion of the rent attributable to personal property will not be qualifying income for purposes of either the 75% or 95% gross income test. If rent attributable to personal property, plus any other income that is nonqualifying income for purposes of the 95% gross income test, during a taxable year exceeds 5% of our gross income during the year, we could lose our REIT status. By contrast, in the following circumstances, none of the rent from a lease of property would qualify as “rents from real property”: (1) the rent is considered based on the income or profits of the lessee; (2) the lessee is a related party tenant or fails to qualify for the exception to the related-party tenant rule for qualifying taxable REIT subsidiaries; or (3) we furnish impermissible services to the tenants of the property, or manage or operate the property, other than through a qualifying independent contractor or a TRS and our income from the services exceeds 1% of our income from the related property.

Interest. The term “interest” generally does not include any amount received or accrued, directly or indirectly, if the determination of the amount depends in whole or in part on the income or profits of any person. However, an amount received or accrued generally will not be excluded from the term “interest” solely because it is based on a fixed percentage or percentages of receipts or sales. Furthermore, in the case of a shared appreciation mortgage, any additional interest received on a sale of the secured property will be treated as gain from the sale of the secured property.

Prohibited Transactions. A REIT will incur a 100% tax on the net income derived from any sale or other disposition of property, other than foreclosure property, that the REIT holds primarily for sale to customers in the ordinary course of a trade or business. There is a safe harbor from such treatment, but such safe harbor only applies to properties that are real estate assets and that the REIT has held for at least four years (two years for sales after July 30, 2008, as described under “—Recent Tax Law Changes”), among other requirements. We may sell or otherwise dispose of some of our properties. To the extent possible, we will attempt to comply with the terms of the safe harbor provisions. However, it is possible that not all sales or dispositions will qualify for the safe harbor. In the absence of the safe harbor, whether a REIT holds an asset “primarily for sale to customers in the ordinary course of a trade or business” depends on the facts and circumstances as they exist from time to time, including those related to a particular asset. It is possible that the IRS may successfully characterize some or all of these sales of property as prohibited transactions.

Foreclosure Property. We will be subject to tax at the maximum corporate rate on certain income from foreclosure property. We do not own any foreclosure properties and do not expect to own any foreclosure properties in the future. This would only change in the future if we were to make or acquire loans to third parties secured by real property or if, for example, we acquired manufacturing or similar operating property leased to the operating business and had to foreclose on the lease.

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Hedging Transactions. From time to time, we may enter into hedging transactions with respect to one or more of our assets or liabilities. Our hedging activities may include entering into interest rate swaps, caps, and floors, options to purchase such items, and futures and forward contracts. Income from certain hedging transactions, clearly identified as such, is not included in our gross income for purposes of the 95% gross income test (and for certain hedging transactions entered into after July 30, 2008, the 75% gross income test, as described in —Recent Tax Law Changes). Since the financial markets continually introduce new and innovative instruments related to risk-sharing or trading, it is not entirely clear which such instruments will generate income and which will be considered qualifying income for purposes of the gross income tests. We intend to structure any hedging or similar transactions so as not to jeopardize our status as a REIT.

Failure to Satisfy Gross Income Tests. If we fail to satisfy one or both of the gross income tests for any taxable year, we nevertheless may qualify as a REIT for that year if we qualify for relief under certain provisions of the federal income tax laws. Those relief provisions generally will be available if:

We cannot with certainty predict whether any failure to meet these tests will qualify for the relief provisions. As discussed above in “—Taxation of WRIT as a REIT,” even if the relief provisions apply, we would incur a 100% tax on the gross income attributable to the greater of the amounts by which we fail the 75% and 95% gross income tests, multiplied by a fraction intended to reflect our profitability.

Asset Tests. To maintain our qualification as a REIT, we also must satisfy the following asset tests at the end of each quarter of each taxable year:

For purposes of the second and third asset tests, the term “securities” does not include equity or debt securities of a qualified REIT subsidiary or TRS, mortgage loans that constitute real estate assets, or equity interests in a partnership. For purposes of the 10% value test, the term “securities” generally does not include debt securities issued by a partnership to the extent of our interest as a partner of the partnership or if at least 75% of the partnership’s gross income (excluding income from prohibited transactions) is qualifying income for purposes of the 75% gross income test. In addition, “straight debt”; loans to individuals or estates; obligations to pay rents from real property; rental agreements described in Section 467 of the Code (other than such agreements with related party tenants); securities issued by other REITs; certain securities issued by a state, the District of Columbia, a foreign government, or a political subdivision of any of the foregoing, or the Commonwealth of Puerto Rico; and certain other instruments are not treated as “securities” for purposes of the 10% value test.

Debt will meet the “straight debt” safe harbor if (1) neither we nor any of our controlled taxable REIT subsidiaries (i.e., taxable REIT subsidiaries in which we, directly or indirectly, own more than 50% of the vote or value of the outstanding stock) owns any securities not described in the preceding paragraph that have an aggregate value greater than 1% of the issuer’s outstanding securities, as calculated under the Code, (2) the debt is a written unconditional promise to pay on demand or on a specified date a sum certain in money, (3) the debt is not convertible, directly or indirectly, into stock, and (4) the interest rate and the interest payment dates of the debt are not contingent on the profits, the borrower’s discretion or similar factors. However, contingencies regarding time of payment of interest and the amount of interest owed are permissible for purposes of qualifying as a straight debt security if either

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(1) such contingency does not have the effect of changing the effective yield to maturity, as determined under the Code, other than a change in the annual yield to maturity that does not exceed the greater of (i) 5% of the annual yield to maturity or (ii) 0.25%, or (2) neither the aggregate issue price nor the aggregate face amount of the issuer’s debt instruments held by our REIT exceeds $1,000,000 and not more than 12 months of unaccrued interest can be required to be prepaid thereunder. In addition, debt will not be disqualified from being treated as “straight debt” solely because the time or amount of payment is subject to a contingency upon a default or the exercise of a prepayment right by the issuer of the debt, provided that such contingency is consistent with customary commercial practice.

Failure to Satisfy the Asset Tests. We will monitor the status of our assets for purposes of the various asset tests and will manage our portfolio in order to comply at all times with such tests. If we fail to satisfy the asset tests at the end of a calendar quarter, we will not lose our REIT status if:

If we did not satisfy the condition described in the second item, above, we still could avoid disqualification by eliminating any discrepancy within 30 days after the close of the calendar quarter in which it arose.

If we fail to satisfy one or more of the asset tests for any quarter of a taxable year, we nevertheless may qualify as a REIT for such year if we qualify for relief under certain provisions of the Code. These relief provisions generally will be available for failures of the 5% asset test and the 10% asset tests if the failure is due to the ownership of assets that do not exceed the lesser of 1% of our total assets or $10 million, and the failure is corrected within 6 months following the quarter in which it was discovered. If we fail other asset tests, or if we fail the 5% asset test or the 10% asset test by more than the amount specified in the previous sentence, these relief provisions will be available if the failure is due to reasonable cause and not due to willful neglect, we file a schedule with a description of each asset causing the failure in accordance with Treasury Regulations, the failure is corrected within 6 months following the quarter in which it was discovered, and we pay a tax for any tax year in which there is such a failure consisting of the greater of $50,000 or a tax computed at the highest corporate rate on the amount of net income generated by the assets causing the failure from the date of failure until the assets are disposed of or we otherwise return to compliance with the asset test. We may not qualify for the relief provisions in all circumstances.

Distribution Requirements. Each taxable year, we must distribute dividends, other than capital gain dividends and deemed distributions of retained capital gains, to our shareholders in an aggregate amount not less than: the sum of (a) 90% of our “REIT taxable income,” computed without regard to the dividends-paid deduction or our net capital gain or loss, and (b) 90% of our after-tax net income, if any, from foreclosure property, minus the sum of certain items of non-cash income.

We must pay such dividends in the taxable year to which they relate, by January 31 of the following year if declared during the last 3 months of such taxable year and payable to shareholders of record within that period, or in the following taxable year if we declare the dividend before we timely file our federal income tax return for the year and pay the dividend on or before the first regular dividend payment date after such declaration.

To the extent that we do not distribute all of our net capital gains or distribute at least 90%, but less than 100%, of our real estate investment trust taxable income, as adjusted, we will have to pay tax on those amounts at regular ordinary and capital gains corporate tax rates. Furthermore, if we fail to distribute during each calendar year at least the sum of (a) 85% of our ordinary income for that year, (b) 95% of our capital gain net income for that year, and (c) any undistributed taxable income from prior periods, we would have to pay a 4% nondeductible excise tax on the excess of the required dividend over the amounts actually distributed.

We may elect to retain and pay income tax on the net long-term capital gains we receive in a taxable year. See “—Taxation of Taxable U.S. Holders of our Shares.” If we so elect, we will be treated as having distributed any such retained amount for purposes of the 4% excise tax described above. We intend to make timely dividends sufficient to satisfy the annual dividend requirements and to avoid corporate income tax and the 4% excise tax.

It is possible that, from time to time, we may experience timing differences between the actual receipt of income and actual payment of deductible expenses and the inclusion of that income and deduction of such expenses in arriving at our REIT taxable income. Further, it is possible that, from time to time, we may be allocated a share of net capital gains attributable to the sale of depreciated property that exceeds our allocable share of cash attributable to that sale. As a result of the foregoing, we may have less cash than is necessary to distribute all of our taxable income and thereby avoid corporate income tax and the excise tax imposed on

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certain undistributed income. In such a situation, we may need to borrow funds or issue additional common shares or pay dividends in the form of taxable share dividends.

Under certain circumstances, we may be able to correct a failure to meet the distribution requirements for a year by paying “deficiency dividends” to our shareholders in a later year. We may include such deficiency dividends in our deduction for dividends paid for the earlier year. Although we may be able to avoid income tax on amounts distributed as deficiency dividends, we will be required to pay interest based upon the amount of any deduction we take for deficiency dividends.

Recordkeeping Requirements. We must maintain certain records in order to qualify as a REIT. In addition, to avoid paying a penalty, we must request on an annual basis information from our shareholders designed to disclose the actual ownership of the outstanding common shares. We have complied and intend to continue to comply with these requirements.

Accounting Period. In order to elect to be taxed as a REIT, we must use a calendar year accounting period. We use the calendar year as our accounting period for federal income tax purposes for each and every year we intend to operate as a REIT.

Failure to Qualify as a REIT. If we failed to qualify as a REIT in any taxable year and no relief provision applied, we would have the following consequences. We would be subject to federal income tax and any applicable alternative minimum tax at rates applicable to regular C corporations on our taxable income, determined without reduction for amounts distributed to shareholders. We would not be required to make any distributions to shareholders, and any dividends to shareholders would be taxable as ordinary income to the extent of our current and accumulated earnings and profits (which may be subject to tax at preferential rates to individual shareholders). Corporate shareholders could be eligible for a dividends-received deduction if certain conditions are satisfied. Unless we qualified for relief under specific statutory provisions, we would not be permitted to elect taxation as a REIT for the four taxable years following the year during which we ceased to qualify as a REIT. We might not be entitled to the statutory relief described in this paragraph in all circumstances.

Relief From Certain Failures of the REIT Qualification Provisions. If we fail to satisfy one or more of the requirements for REIT qualification (other than the income tests or the asset tests), we nevertheless may avoid termination of our REIT election in such year if the failure is due to reasonable cause and not due to willful neglect and we pay a penalty of $50,000 for each failure to satisfy the REIT qualification requirements. We may not qualify for this relief provision in all circumstances.

Recent Tax Law Changes. On July 30, 2008, President Bush signed into law “The Housing and Economic Recovery Act of 2008” (the “Act”). The Act contains a number of provisions applicable to REITs and is generally effective for taxable years beginning after July 20, 2008. These provisions became effective for us in our taxable year beginning on January 1, 2009. As noted below, however, certain provisions are effective after July 30, 2008. Some of the provisions address the treatment of foreign currency gains and income from hedging transactions for purposes of the REIT 75% and 95% income tests, while other provisions modify the REIT asset tests and the method for calculating amounts subject to the prohibited transaction penalty tax.

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Taxation of Holders of our Shares

For purposes of this discussion, the term “U.S. holder” means a beneficial owner of shares that is for U.S. federal income tax purposes:

If a partnership (or other entity treated as a partnership for U.S. federal income tax purposes) holds shares, the tax treatment of a partner in the partnership will generally depend upon the status of the partner and the activities of the partnership. If you are a partnership or a partner of a partnership holding shares, you should consult your tax advisor regarding the tax consequences of the ownership and disposition of shares.

Taxation of Taxable U.S. Holders of our Shares

As long as we qualify as a REIT, distributions made by us out of our current or accumulated earnings and profits, and not designated as capital gain dividends, will constitute dividends taxable to taxable U.S. holders of our shares as ordinary income. Individuals receiving “qualified dividends” from domestic and certain qualifying foreign subchapter C corporations may be entitled to lower rates on dividends (at rates applicable to long-term capital gains, currently at a maximum rate of 15%) provided certain holding period requirements are met. However, individuals receiving dividend distributions from us, a REIT, will generally not be eligible for the lower rates on dividends except with respect to the portion of any distribution which (a) represents dividends being passed through to us from a corporation in which we own shares (but only if such dividends would be eligible for the lower rates on dividends if paid by the corporation to its individual shareholders), including dividends from our TRS, (b) is equal to our REIT taxable income for the previous year (taking into account the dividends paid deduction available to us) less any taxes paid by us on these items during our previous taxable year, or (c) are attributable to built-in gains realized and recognized by us from disposition of properties acquired by us in non-recognition transaction, less any taxes paid by us on these items during our previous taxable year. The lower rates will apply only to the extent we designate a distribution as qualified dividend income in a written notice to you. Individual taxable U.S. holders should consult their own tax advisors to determine the impact of these provisions. Dividends of this kind will not be eligible for the dividends received deduction in the case of taxable U.S. holders that are corporations. Dividends made by us that we properly designate as capital gain dividends will be taxable to taxable U.S. holders as gain from the sale of a capital asset held for more than one year, to the extent that they do not exceed our actual net capital gain for the taxable year, without regard to the period for which a taxable U.S. holders has held its common shares. Thus, with certain limitations, capital gain dividends received by an individual taxable U.S. holder may be eligible for preferential rates of taxation. Taxable U.S. holders that are corporations may, however, be required to treat up to 20% of certain capital gain dividends as ordinary income.

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The 15% reduced maximum tax rate on “qualified dividends” and certain long-term capital gains, as described above, was provided in the Jobs and Growth Tax Relief Reconciliation Act of 2003 and was originally effective for taxable years ending on or after May 6, 2003 through December 31, 2008. On May 17, 2006, President Bush signed the Tax Relief Extension Reconciliation Act of 2005, which extended this reduction until December 31, 2010. Without future legislative changes, the maximum long-term capital gains and qualified dividend rate discussed above will increase in 2011.

To the extent that we pay dividends, not designated as capital gain dividends, in excess of our current and accumulated earnings and profits, these dividends will be treated first as a tax-free return of capital to each taxable U.S. holder. Thus, these dividends will reduce the adjusted basis which the taxable U.S. holder has in our shares for tax purposes by the amount of the dividend, but not below zero. Dividends in excess of a taxable U.S. holder’s adjusted basis in its common shares will be taxable as capital gains, provided that the shares have been held as a capital asset.

Dividends authorized by us in October, November, or December of any year and payable to a shareholder of record on a specified date in any of these months will be treated as both paid by us and received by the shareholder on December 31 of that year, provided that we actually pay the dividend in January of the following calendar year. Shareholders may not include in their own income tax returns any of our net operating losses or capital losses.

We may elect to retain, rather than distribute, all or a portion of our net long-term capital gains and pay the tax on such gains. If we make such an election, we will designate amounts as undistributed capital gains in respect of your shares or beneficial interests by written notice to you which we will mail out to you with our annual report or at any time within 60 days after December 31 of any year. When we make such an election, taxable U.S. holders holding common shares at the close of our taxable year will be required to include, in computing their long-term capital gains for the taxable year in which the last day of our taxable year falls, the amount that we designate in a written notice mailed to our shareholders. We may not designate amounts in excess of our undistributed net capital gain for the taxable year. Each taxable U.S. holder required to include the designated amount in determining the holder’s long-term capital gains will be deemed to have paid, in the taxable year of the inclusion, the tax paid by us in respect of the undistributed net capital gains. Taxable U.S. holders to whom these rules apply will be allowed a credit or a refund, as the case may be, for the tax they are deemed to have paid. Taxable U.S. holders will increase their basis in their shares by the difference between the amount of the includible gains and the tax deemed paid by the shareholder in respect of these gains.

Dividends made by us and gain arising from a taxable U.S. holder’s sale or exchange of our shares will not be treated as passive activity income. As a result, taxable U.S. holders generally will not be able to apply any passive activity losses against that income or gain.

When a taxable U.S. holder sells or otherwise disposes of our shares, the holder will recognize gain or loss for federal income tax purposes in an amount equal to the difference between (a) the amount of cash and the fair market value of any property received on the sale or other disposition, and (b) the holder’s adjusted basis in the shares for tax purposes. This gain or loss will be capital gain or loss if the U.S. holder has held the shares as a capital asset. The gain or loss will be long-term gain or loss if the U.S. holder has held the shares for more than one year. Long-term capital gains of an individual taxable U.S. holder is generally taxed at preferential rates. The highest marginal individual income tax rate is currently 35%. The maximum tax rate on long-term capital gains applicable to individuals is 15% for sales and exchanges of assets held for more than one year and occurring after May 6, 2003 through December 31, 2010. The maximum tax rate on long-term capital gains applicable to individuals from the sale or exchange of “section 1250 property” (i.e., generally, depreciable real property) is 25% to the extent the gain would have been treated as ordinary income if the property were “section 1245 property” (i.e., generally, depreciable personal property). We generally may designate whether a distribution we designate as capital gain dividends (and any retained capital gain that we are deemed to distribute) is taxable to non-corporate holders at a 15% or 25% rate. The characterization of income as capital gain or ordinary income may affect the deductibility of capital losses. A non-corporate taxpayer may deduct capital losses not offset by capital gains against its ordinary income only up to a maximum of $3,000 annually. A non-corporate taxpayer may carry unused capital losses forward indefinitely. A corporate taxpayer must pay tax on its net capital gains at corporate ordinary-income rates. A corporate taxpayer may deduct capital losses only to the extent of capital gains, with unused losses carried back three years and forward five years. In general, any loss recognized by a taxable U.S. holder when the holder sells or otherwise disposes of our shares that the holder has held for six months or less, after applying certain holding period rules, will be treated as a long-term capital loss to the extent of dividends received by the holder from us which were required to be treated as long-term capital gains.

Taxation of Tax-Exempt Holders of our Shares

Amounts distributed as dividends by a REIT generally do not constitute unrelated business taxable income when received by a tax-exempt entity. Provided that a tax-exempt holder is not one of the types of entity described in the next paragraph and has not

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held its shares as “debt financed property” within the meaning of the Code, and the shares are not otherwise used in a trade or business, the dividend income from the shares will not be unrelated business taxable income to a tax-exempt shareholder. Similarly, income from the sale of shares will not constitute unrelated business taxable income unless the tax-exempt holder has held the shares as “debt financed property” within the meaning of the Code or has used the shares in a trade or business.

Income from an investment in our securities will constitute unrelated business taxable income for tax-exempt shareholders that are social clubs, voluntary employee benefit associations, supplemental unemployment benefit trusts, and qualified group legal services plans exempt from federal income taxation under the applicable subsections of Section 501(c) of the Code, unless the organization is able to properly deduct amounts set aside or placed in reserve for certain purposes so as to offset the income generated by its securities. Prospective investors of the types described in the preceding sentence should consult their own tax advisors concerning these “set aside” and reserve requirements.

Notwithstanding the foregoing, however, a portion of the dividends paid by a “pension-held REIT” will be treated as unrelated business taxable income to any trust which:

Tax-exempt pension, profit-sharing and stock bonus funds that are described in Section 401(a) of the Code are referred to below as “qualified trusts.” A REIT is a “pension-held REIT” if:

The percentage of any REIT dividend treated as unrelated business taxable income (“UBTI”) to a qualifying trust is equal to the ratio of (a) the gross income of the REIT from unrelated trades or businesses, determined as though the REIT were a qualified trust, less direct expenses related to this gross income, to (b) the total gross income of the REIT, less direct expenses related to the total gross income. A de minimis exception applies where this percentage is less than 5% for any year. We do not expect to be classified as a pension-held REIT, but this cannot be guaranteed. Because there are significant differences between the rules regarding when gross income will satisfy the 75% and 95% gross income tests for REITs and when gross income will result in UBTI, a qualified trust should consult its own tax advisors if it is considering acquiring more than 10% of our shares.

The rules described above in “—Taxation of Taxable U.S. Holders of our Shares” concerning the inclusion of our designated undistributed net capital gains in the income of our shareholders will apply to tax-exempt entities. Thus, tax-exempt entities will be allowed a credit or refund of the tax deemed paid by these entities in respect of the includible gains.

Taxation of Non-U.S. Holders of our Shares

The rules governing U.S. federal income taxation of nonresident alien individuals, foreign corporations, foreign partnerships and other foreign shareholders are complex. This section is only a summary of such rules. We urge non-U.S. holders to consult their own tax advisors to determine the impact of federal, state, and local income tax laws on ownership of common stock, including any reporting requirements.

Ordinary Dividends. Dividends, other than dividends that are treated as attributable to gain from sales or exchanges by us of U.S. real property interests, as discussed below, and other than dividends designated by us as capital gain dividends, will be treated as ordinary income to non-U.S. holders of our shares to the extent that they are made out of our current or accumulated earnings and profits. A withholding tax equal to 30% of the gross amount of the dividend will ordinarily apply to dividends of this kind to non-U.S. holders, unless an applicable income tax treaty reduces that tax. However, if income from an investment in our shares is treated as effectively connected with the non-U.S. holder’s conduct of a U.S. trade or business or is attributable to a permanent establishment that the non-U.S. holder maintains in the U.S. (if that is required by an applicable income tax treaty as a condition for subjecting the non-U.S. holder to U.S. taxation on a net income basis), tax at graduated rates will generally apply to the non-U.S. holder in the same manner as U.S. holders are taxed with respect to dividends, and the 30% branch profits tax may also apply if the shareholder is a

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foreign corporation. We expect to withhold U.S. tax at the rate of 30% on the gross amount of any dividends, other than dividends treated as attributable to gain from sales or exchanges of U.S. real property interests and capital gain dividends, paid to a non-U.S. holder, unless (a) a lower treaty rate applies and the required form evidencing eligibility for that reduced rate (ordinarily, IRS Form W-8 BEN) is filed with us or the appropriate withholding agent or (b) the non-U.S. holders files an IRS Form W-8 ECI or a successor form with us or the appropriate withholding agent claiming that the dividends are effectively connected with the non-U.S. holder’s conduct of a U.S. trade or business.

Dividends to a non-U.S. holder of our shares that are designated by us at the time of dividend as capital gain dividends which are not attributable to or treated as attributable to the disposition by us of a U.S. real property interest generally will not be subject to U.S. federal income taxation, except as described below.

Return of Capital. Distributions in excess of our current and accumulated earnings and profits, which are not treated as attributable to the gain from our disposition of a U.S. real property interest, will not be taxable to a non-U.S. holder of our shares to the extent that they do not exceed the adjusted basis of the non-U.S. holder’s shares. Distributions of this kind will instead reduce the adjusted basis of the shares. To the extent that distributions of this kind exceed the adjusted basis of a non-U.S. holder’s common shares, they will give rise to tax liability if the non-U.S. holder otherwise would have to pay tax on any gain from the sale or disposition of its common shares, as described below. If it cannot be determined at the time a distribution is made whether the distribution will be in excess of current and accumulated earnings and profits, withholding will apply to the distribution at the rate applicable to dividends. Subject to some possible exceptions, distributions which exceed our current and accumulated earnings and profits are subject to a 10% withholding tax. However, because we may not be able to ascertain at the time that a distribution exceeds our current and accumulated earnings and profits, it is quite likely that we will withhold on such amounts just as we would withhold on a dividend as discussed above. The non-U.S. holder may seek a refund of these amounts from the IRS if it is subsequently determined that the amounts withheld exceeded the non-U.S. holder’s tax liability, provided the required information is furnished to the IRS.

Capital Gain Dividends. For any year in which we qualify as a REIT, dividends that are attributable to gain from sales or exchanges by us of U.S. real property interests will be taxed to a non-U.S. holder of our shares under the provisions of the Foreign Investment in Real Property Tax Act of 1980, as amended (“FIRPTA”). Under this statute, these dividends are taxed to a non-U.S. holder as if the gain were effectively connected with a U.S. business. Thus, non-U.S. holders will be taxed on the dividends at the normal capital gain rates applicable to U.S. holders, subject to any applicable alternative minimum tax and special alternative minimum tax in the case of non-U.S. holders that are individuals. Also, distributions subject to FIRPTA may be subject to a 30% branch profits tax in the hands of a foreign corporate shareholder not entitled to a treaty exemption or rate reduction. The above rules relating to distributions attributable to gains from our sales or exchanges of U.S. real property interests will not apply with respect to a non-U.S. holder that does not own more than 5% of our common shares at any time during the 1-year period ending on the date of the distribution, provided our common shares are “regularly traded” on an established securities market in the U.S. Instead, they will be treated as ordinary dividend income. As a result, they will not be eligible for the reduced rate of taxation applicable to long-term capital gains. However, such distributions will not be subject to the branch profits tax in the hands of foreign corporate shareholders.

Although the law is not clear on the matter, it appears that amounts we designate as retained capital gains in respect of common shares held by non-U.S. holders generally should be treated with respect to non-U.S. holders in the same manner as actual distributions by us of capital gain dividends. Under this approach, a non-U.S. holder would be able to offset as a credit against its United States federal income tax liability its proportionate share of the tax treated as paid by it on such retained capital gains, and to receive from the IRS a refund to the extent its proportionate share of such tax treated as paid by it exceeds its actual United States federal income tax liability. Such capital gains retained by us may also trigger a 30% branch profits tax for foreign corporate shareholders not entitled to a treaty exemption or rate reduction.

We are required by applicable Treasury Regulations under FIRPTA to withhold 35% of any distribution that we could designate as a capital gains dividend. However, if we designate as a capital gain dividend a distribution made before the day we actually effect the designation, then although the distribution may be taxable to a non-U.S. holder, withholding under FIRPTA does not apply to the distribution. Rather, we must effect the 35% withholding from distributions made on and after the date of the designation, until the distributions so withheld equal the amount of the prior distribution designated as a capital gain dividend. The non-U.S. holder may credit the amount withheld against its U.S. tax liability.

Sale of Common Shares. Gain recognized by a non-U.S. holder upon a sale or exchange of our common shares generally will not be taxed under FIRPTA if we are a “domestically controlled REIT,” defined generally as a REIT, less than 50% in value of whose stock is and was held directly or indirectly by foreign persons at all times during a specified testing period. We believe that we will be a domestically controlled REIT, and, therefore, that taxation under FIRPTA generally will not apply to the sale of our common shares. However, because our shares are publicly traded, no assurance can be given that we will qualify as a domestically controlled REIT at

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any time in the future. Further, even if we are a “domestically-controlled REIT”, certain “wash sale” rules may require non-U.S. holders to pay tax on the disposition of our shares if, by means of such “wash sale”, they avoided receiving a distribution which would otherwise have been subject to FIRPTA.

If we are not a domestically controlled REIT, tax under the FIRPTA also will not apply to a non-U.S. holder’s sale of common shares as long as our shares are regularly traded on an established securities market and the selling non-U.S. holder did not own more than 5% of the class of common shares sold at any time during a specified period. This period is generally the shorter of the period that the non-U.S. holder owned the common shares sold or the 5-year period ending on the date when the shareholder disposed of the common shares. Under Treasury Regulations, a class of stock is considered to be “regularly traded” on an established securities market if a prescribed minimum percentage of such stock is traded on an established market during each calendar quarter and 100 or fewer persons (treating related persons as one person) do not own 50% or more thereof. Treasury Regulations also provide that stock will be considered to be “regularly traded” on a domestic established securities market for any calendar quarter for which it is regularly quoted by brokers or dealers making a market in it. It is not clear under the Treasury Regulations whether, in applying this alternative standard, the closely-held prohibition described in the second preceding sentence also applies.

Even if FIRPTA does not apply, however, gain from a sale of our shares will be taxable to a non-U.S. holder if investment in the common shares is treated as effectively connected with the non-U.S. holder’s U.S. trade or business or is attributable to a permanent establishment that the non-U.S. holder maintains in the U.S. (if that is required by an applicable income tax treaty as a condition for subjecting the non-U.S. holders to U.S. taxation on a net income basis). In this case, the same treatment will apply to the non-U.S. holders as to U.S. holders with respect to the gain; and “effectively connected gain” realized by a corporate non-U.S. holder may be subject to a 30% branch profits tax, subject to possible exemption or rate reduction under an applicable tax treaty. In addition, gain to which FIRPTA does not apply will be taxable to a non-U.S. holder if the non-U.S. holder is a nonresident alien individual who was present in the U.S. for 183 days or more during the taxable year to which the gain is attributable. In this case, a 30% tax will apply to the nonresident alien individual’s capital gains. A similar rule will apply to capital gain dividends to which FIRPTA does not apply.

If tax under FIRPTA applies to the gain on the sale of common shares, the same treatment would apply to the non-U.S. holder as to U.S. holders with respect to the gain, subject to any applicable alternative minimum tax and a special alternative minimum tax in the case of nonresident alien individuals; and the purchaser would be required to withhold and remit to the IRS 10% of the purchase price.

Taxation of Holders of our Debt Securities

For purposes of this discussion, the term “U.S. holder” means a beneficial owner of a debt security that is for U.S. federal income tax purposes:

If a partnership (or other entity treated as a partnership for U.S. federal income tax purposes) holds debt securities, the tax treatment of a partner in the partnership will generally depend upon the status of the partner and the activities of the partnership. If you are a partnership or a partner of a partnership holding debt securities, you should consult your tax advisor regarding the tax consequences of the ownership and disposition of debt securities.

Further, this discussion is of a general nature only. Our debt securities may have terms, such as conversion rights, adjustments to conversion ratios, provision for additional interest upon certain contingencies, or other features, that are not discussed herein and that may materially affect the U.S. federal income tax treatment of such debt security. You should carefully examine the applicable prospectus supplement or supplements and consult your own tax advisors with respect to debt securities with such features.

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Taxation of Taxable U.S. Holders of our Debt Securities

Interest. The stated interest on debt securities generally will be taxable to a U.S. holder as ordinary income at the time that it is paid or accrued, in accordance with the U.S. holder’s method of accounting for United States federal income tax purposes.

Original Issue Discount. U.S. holders that own debt securities issued with original issue discount (“OID”) will be subject to special tax accounting rules, as described in greater detail below. In that case, such holders generally must include OID in gross income in advance of the receipt of cash attributable to that income. However, such holders generally will not be required to include separately in income cash payments received on the debt securities, even if denominated as interest, to the extent those payments do not constitute “qualified stated interest,” as defined below. If we determine that a particular debt security will be an OID debt security, we will disclose that determination in the prospectus supplement or supplements relating to those debt securities.

A debt security will generally be treated as issued with OID if it has an “issue price” that is less than the “stated redemption price at maturity” (the sum of all payments to be made on the debt security other than “qualified stated interest”) and if that difference is at least 0.25% of the stated redemption price at maturity multiplied by the number of complete years to maturity. The “issue price” of each debt security in a particular offering will be the first price at which a substantial amount of that particular offering is sold to the public. The term “qualified stated interest” means stated interest that is unconditionally payable in cash or in property, other than debt instruments of the issuer, and the interest to be paid meets all of the following conditions:

If we determine that particular debt securities of a series will bear interest that is not qualified stated interest, we will disclose that determination in the prospectus supplement or supplements relating to those debt securities.

If a U.S. holder owns a debt security issued with “de minimis” OID, which is discount that is not OID because it is less than 0.25% of the stated redemption price at maturity multiplied by the number of complete years to maturity, such holder generally must include the de minimis OID in income at the time principal payments on the debt securities are made in proportion to the amount paid. Any amount of de minimis OID that is included in income will be treated as capital gain.

Certain of the debt securities may contain provisions permitting them to be redeemed prior to their stated maturity at our option and/or at the holder’s option. OID debt securities containing those features may be subject to rules that differ from the general rules discussed herein. Persons who are considering the purchase of OID debt securities with those features should carefully examine the applicable prospectus supplement or supplements and should consult their own tax advisors with respect to those features since the tax consequences to them with respect to OID will depend, in part, on the particular terms and features of the debt securities.

U.S. holders that own OID debt securities with a maturity upon issuance of more than one year generally must include OID in income in advance of the receipt of some or all of the related cash payments using the “constant yield method” described in the following paragraphs. This method takes into account the compounding of interest.

The amount of OID that U.S. holders must include in income if they are the initial U.S. holder of an OID debt security is the sum of the “daily portions” of OID with respect to the debt security for each day during the taxable year or portion of the taxable year in which they held that debt security (“accrued OID”). The daily portion is determined by allocating to each day in any “accrual period” a pro rata portion of the OID allocable to that accrual period. The “accrual period” for an OID debt security may be of any length and may vary in length over the term of the debt security, provided that each accrual period is no longer than one year and each scheduled payment of principal or interest occurs on the first day or the final day of an accrual period. The amount of OID allocable to any accrual period is an amount equal to the excess, if any, of:

OID allocable to a final accrual period is the difference between the amount payable at maturity, other than a payment of qualified stated interest, and the adjusted issue price at the beginning of the final accrual period. Special rules will apply for

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calculating OID for an initial short accrual period. The “adjusted issue price” of a debt security at the beginning of any accrual period is equal to its issue price increased by the accrued OID for each prior accrual period, determined without regard to the amortization of any acquisition or bond premium, as described below, and reduced by any payments made on the debt security (other than qualified stated interest) on or before the first day of the accrual period. Under these rules, U.S. holders will generally have to include in income increasingly greater amounts of OID in successive accrual periods. We are required to provide information returns stating the amount of OID accrued on debt securities held of record by persons other than corporations and other exempt holders.

Floating rate debt securities are subject to special OID rules. In the case of an OID debt security that is a floating rate debt security, both the “yield to maturity” and “qualified stated interest” will be determined solely for purposes of calculating the accrual of OID as though the debt security will bear interest in all periods at a fixed rate generally equal to the rate that would be applicable to interest payments on the debt security on its date of issue or, in the case of certain floating rate debt securities, the rate that reflects the yield to maturity that is reasonably expected for the debt security. Additional rules may apply if either:

This discussion does not address the tax rules applicable to debt securities with an indexed principal amount. Persons who are considering the purchase of floating rate OID debt securities or securities with indexed principal amounts should carefully examine the prospectus supplement or supplements relating to those debt securities, and should consult their own tax advisors regarding the United States federal income tax consequences to them of holding and disposing of those debt securities.

U.S. holders may elect to treat all interest on any debt securities as OID and calculate the amount includible in gross income under the constant yield method described above. For purposes of this election, interest includes stated interest, acquisition discount, OID, de minimis OID, market discount, de minimis market discount and unstated interest, as adjusted by any amortizable bond premium or acquisition premium. This election must be made for the taxable year in which the debt security was acquired, and may not be revoked without the consent of the IRS. Interested persons should consult with their own tax advisors about this election.

Market Discount. If debt securities, other than OID debt securities, are purchased for an amount that is less than their stated redemption price at maturity, or, in the case of OID debt securities, for an amount that is less than their adjusted issue price, the amount of the difference will be treated as “market discount” for United States federal income tax purposes unless that difference is less than a specified de minimis amount. Under the market discount rules, any principal payment on, or any gain on the sale, exchange, retirement or other disposition of, the debt securities must be treated as ordinary income to the extent of the market discount that the holder has not previously included in income and is treated as having accrued on the debt securities at the time of their payment or disposition. In addition, U.S. holders may be required to defer, until the maturity of the debt securities or their earlier disposition in a taxable transaction, the deduction of all or a portion of the interest expense on any indebtedness attributable to the debt securities. U.S. holders may elect, on a debt security-by-debt security basis, to deduct the deferred interest expense in a tax year prior to the year of disposition. U.S. holders should consult their own tax advisors before making this election.

Any market discount will be considered to accrue ratably during the period from the date of acquisition to the maturity date of the debt securities, unless the U.S. holder elects to accrue on a constant interest method. U.S. holders may elect to include market discount in income currently as it accrues, on either a ratable or constant interest method, in which case the rule described above regarding deferral of interest deductions will not apply. An election to include market discount in income currently, once made, applies to all market discount obligations acquired by the taxpayer on or after the first day of the first taxable year to which your election applies and may not be revoked without the consent of the IRS. Interested persons should consult their own tax advisors before making this election.

Acquisition Premium and Amortizable Bond Premium. If OID debt securities are purchased by a U.S. holder for an amount that is greater than their adjusted issue price but equal to or less than the sum of all amounts payable on the debt securities after the purchase date other than payments of qualified stated interest, those debt securities will be considered to have been purchased at an “acquisition premium.” Under the acquisition premium rules, the amount of OID that a U.S. holder must include in gross income with respect to those debt securities for any taxable year will be reduced by the portion of the acquisition premium properly allocable to that year.

If debt securities (including OID debt securities) are purchased by a U.S. holder for an amount in excess of the sum of all amounts payable on those debt securities after the purchase date other than qualified stated interest, those debt securities will be considered to have been purchased at a “bond premium” and, if they are OID debt securities, the U.S. holder will not be required to include any OID in income. The U.S. holder generally may elect to amortize the bond premium over the remaining term of those debt

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securities on a constant yield method as an offset to interest when includible in income under its regular accounting method. In the case of debt securities that provide for alternative payment schedules, bond premium is calculated by assuming that (a) the holder will exercise or not exercise options in a manner that maximizes its yield, and (b) we will exercise or not exercise options in a manner that minimizes the holder’s yield (except that we will be assumed to exercise call options in a manner that maximizes the holder’s yield). If the issuer does not in fact exercise its right to redeem the debt instrument on the applicable redemption date, the debt instrument will be treated (solely for purposes of the amortizable bond premium rules) as having matured and then as having been reissued for the U.S. Holder’s “adjusted acquisition price,” which is an amount equal to the U.S. Holder’s basis in the debt instrument (as determined under the applicable Treasury Regulations), less the sum of (i) any amortizable bond premium allocable to prior accrual periods and (ii) any payments previously made on the debt instrument (other than payments of qualified stated interest). The debt instrument deemed to have been reissued will again be subject to the amortizable bond premium rules with respect to the remaining dates on which the debt instrument is redeemable.

If no election is made to amortize bond premium, that premium will decrease the gain or increase the loss that would otherwise be recognized on disposition of the debt security. An election to amortize bond premium on a constant yield method will also apply to all debt obligations held or subsequently acquired by the taxpayer on or after the first day of the first taxable year to which the election applies. The election may not be revoked without the consent of the IRS. Interested persons should consult their own tax advisors before making this election.

In general, if a U.S. holder elects to amortize bond premium, it does so by offsetting the qualified stated interest allocable to an accrual period with the bond premium allocable to the accrual period, which is determined under a constant yield method pursuant to the applicable Treasury Regulations. If the bond premium allocable to an accrual period exceeds the qualified stated interest allocable to such period, the excess is treated by the U.S. holder as a bond premium deduction. The bond premium deduction for each accrual period is limited to the amount by which the U.S. holder’s total interest inclusions on the debt instrument in prior accrual periods exceed the total amount treated by such U.S. holder as a bond premium deduction on the debt instrument in prior accrual periods. Any amounts not deductible in an accrual period may be carried forward to the next accrual period and treated as bond premium allocable to that period.

Sale, Exchange and Retirement of Debt Securities. A U.S. holder of debt securities will recognize gain or loss upon the sale, exchange, retirement, redemption or other taxable disposition of such debt securities in an amount equal to the difference between:

The adjusted basis of the debt securities will, in general, be the U.S. holder’s cost for the debt securities, increased by OID and any accrued market discount previously included in income and reduced by any amortizable bond premium previously allowable as a deduction and any cash payments on the debt securities other than qualified stated interest. Subject to the rules regarding market discount, acquisition premium and amortizable bond premium discussed above, any gain in excess of accrued interest not previously included in income by the holder or loss recognized will generally be capital gain or loss, and such capital gain or loss will generally be long-term capital gain or loss if debt securities has been held by the U.S. holder for more than one year. Long-term capital gain for non-corporate taxpayers is subject to reduced rates of United States federal income taxation. The deductibility of capital losses is subject to certain limitations.

Non-U.S. Holders of our Debt Securities

The following is a discussion of the material U.S. federal income and estate tax consequences that generally will apply to a non-U.S. holder of debt securities. The rules governing the U.S. federal income taxation of a non-U.S. holder of debt securities are complex and no attempt will be made herein to provide more than a general summary of such rules. Non-U.S. holders should consult their tax advisors to determine the effect of U.S. federal, state, local and foreign tax laws, as well as tax treaties, with regard to an investment in the notes.

Interest. Noncontingent interest (including accrued OID) paid to a non-U.S. holder of debt securities will, under the “portfolio interest exception,” generally not be subject to United States federal withholding tax provided that:

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In order for a Non-U.S. Holder that is an individual or corporation (or entity treated as such for U.S. federal income tax purposes) to qualify for the portfolio interest exemption from taxation on noncontingent interest, the “withholding agent” (generally, the last U.S. payor or a non-U.S. payor who is a qualified intermediary or withholding foreign partnership) must have received a statement (generally made on IRS Form W-8BEN) from the individual or corporation that: (i) is signed under penalties of perjury by the beneficial owner of the note, (ii) certifies that such owner is not a U.S. holder and (iii) provides the beneficial owner’s name and address. Certain securities clearing organizations and other entities that are not beneficial owners may provide a signed statement accompanied by a copy of the beneficial owner’s IRS Form W-8BEN to the withholding agent. An IRS Form W-8BEN is generally effective for the remainder of the year of signature plus three full calendar years unless a change in circumstances renders any information on the form incorrect. Notwithstanding the preceding sentence, an IRS Form W-8BEN with a U.S. taxpayer identification number will remain effective until a change in circumstances makes any information on the form incorrect, provided that the withholding agent reports at least one payment annually to the beneficial owner. The beneficial owner must inform the withholding agent within 30 days of such change and furnish a new IRS Form W-8BEN. A non-U.S. holder that is not an individual or corporation (or an entity treated as a corporation for U.S. federal income tax purposes) holding the notes on its own behalf may have substantially increased reporting requirements and should consult its tax advisor.

A payment of interest (including OID) to a non-U.S. holder that does not qualify for the portfolio interest exception and that is not effectively connected to a United States trade or business will be subject to United States federal withholding tax at a rate of 30%, unless a United States income tax treaty applies to reduce or eliminate withholding.

A non-U.S. holder will generally be subject to tax in the same manner as a U.S. holder with respect to payments of interest (including OID) if such payments are effectively connected with the conduct of a trade or business by the non-U.S. holder in the United States or is attributable to a United States permanent establishment maintained by the non-U.S. Holder (if that is required by an applicable income tax treaty as a condition for subjecting the non-U.S. holder to U.S. taxation on a net income basis). In some circumstances, such effectively connected income received by a non-U.S. holder which is a corporation may be subject to an additional “branch profits tax” at a 30% base rate or, if applicable, a lower treaty rate.

To claim the benefit of a lower treaty rate or to claim exemption from withholding because the income is effectively connected with a United States trade or business, the non-U.S. holder must provide a properly executed IRS Form W-8BEN or IRS Form W-8ECI, or a suitable substitute form, as applicable, prior to the payment of interest. Such certificate must contain, among other information, the name and address of the non-U.S. holder.

Non-U.S. holders are urged to consult their own tax advisors regarding applicable income tax treaties, which may provide different rules.

Sale or Retirement of Debt Securities. A Non-U.S. holder generally will not be subject to United States federal income tax or withholding tax on gain (other than interest) realized on the sale, exchange or redemption of debt securities unless:

Except to the extent that an applicable tax treaty provides otherwise, a non-U.S. holder will generally be subject to tax in the same manner as a U.S. holder with respect to gain realized on the sale, exchange or redemption of debt securities if such gain is effectively connected with the conduct of a trade or business by the non-U.S. holder in the United States and, if an applicable tax treaty provides, such gain is attributable to a United States permanent establishment maintained by the non-U.S. holder. In certain

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circumstances, a non-U.S. holder that is a corporation will be subject to an additional “branch profits tax” at a 30% rate or, if applicable, a lower treaty rate on such income.

Information Reporting Requirements and Backup Withholding

U.S. Holders

We will report to U.S. holders of our debt securities and shares and to the Internal Revenue Service the amount of interest or dividends we pay during each calendar year and the amount of tax we withhold, if any. A holder may be subject to backup withholding at a rate of 28% with respect to interest or dividends unless the U.S. holder:

A U.S. holder who does not provide us with its correct taxpayer identification number also may be subject to penalties imposed by the Internal Revenue Service. Any amount paid as backup withholding will be creditable against the holder’s income tax liability. In addition, we may be required to withhold a portion of capital gain dividends to any U.S. holders who fail to certify their non-foreign status to us.

Non-U.S. Holders

Non-U.S. holders of our shares or debt securities are generally exempt from backup withholding and information reporting requirements with respect to:

provided neither we nor the holder’s broker has actual knowledge or reason to know that the holder is a U.S. person and the holder has furnished to the payor or broker: (a) a valid Internal Revenue Service Form W-8BEN or an acceptable substitute form upon which the holder certifies, under penalties of perjury, that it is a non-U.S. person, or (b) other documentation upon which we may rely to treat the payments as made to a non-U.S. person in accordance with U.S. Treasury Regulations, or (c) the holder otherwise establishes an exemption.

Payment of the proceeds from the sale of common shares or debt securities effected at a foreign office of a broker generally will not be subject to information reporting or backup withholding. However, a sale of common shares or debt securities that is effected at a foreign office of a broker will be subject to information reporting and backup withholding if:

unless the broker does not have actual knowledge or reason to know that the holder is a U.S. person and the documentation requirements described above are met or the holder otherwise establishes an exemption.

In addition, a sale of common shares or debt securities will be subject to information reporting if it is effected at a foreign office of a broker that is:

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unless the broker does not have actual knowledge or reason to know that the holder is a U.S. person and the documentation requirements described above are met or the holder otherwise establishes an exemption. Backup withholding will apply if the sale is subject to information reporting and the broker has actual knowledge that the holder is a U.S. person. The holder generally may obtain a refund of any amounts withheld under the backup withholding rules that exceed the holder’s income tax liability by filing a refund claim with the Internal Revenue Service.

State and Local Taxes

We and/or our securityholders may be subject to taxation by various states and localities, including those in which we or a holder transacts business, owns property or resides. The state and local tax treatment may differ from the federal income tax treatment described above. Consequently, holders should consult their own tax advisors regarding the effect of state and local tax laws upon an investment in our securities.

LEGAL OPINIONS

The validity of the offered securities and certain tax matters are being passed upon for WRIT by Arent Fox LLP, Washington, D.C. The validity of the offered securities and certain tax matters will be passed upon for any underwriters by the counsel named in the applicable prospectus supplement.

EXPERTS

Ernst & Young LLP, independent registered public accounting firm, has audited our consolidated financial statements and schedule included in our Current Report on Form 8-K dated July 10, 2009, and the effectiveness of our internal control over financial reporting as of December 31, 2008 included in our Annual Report on Form 10-K as set forth in their reports, which are incorporated by reference in this prospectus and elsewhere in the registration statement. Our financial statements and schedule are incorporated by reference in reliance on Ernst & Young LLP’s reports, given on their authority as experts in accounting and auditing.

The historical summaries of gross income and direct operating expenses of Kenmore Apartments and 2445 M Street for the year ended December 31, 2007 are incorporated in reliance on the reports dated February 10, 2009 of Argy, Wiltse & Robinson, P.C., which we also incorporate by reference, and on the authority of that firm as experts in accounting and auditing.

WHERE YOU CAN FIND MORE INFORMATION

We file annual, quarterly and current reports, proxy statements and other information with the SEC. Our SEC filings are available to the public at the SEC’s website at http://www.sec.gov. You may also read and copy any document we file at the SEC’s Public Reference Room at 100 F Street, N.E. Washington, D.C. 20549. Please call the SEC at 1-(800) SEC-0330 for further information on the operating rules and procedures for the public reference room.

Because our common shares are listed on the New York Stock Exchange, you also may read our reports, proxy statements and other information at the offices of the New York Stock Exchange, 20 Broad Street, New York, New York 10005.

We have filed with the SEC a registration statement relating to the offered securities on Form S-3 under the Securities Act of 1933. This prospectus does not contain all the information in the registration statement. We have omitted parts of it in accordance with the SEC’s rules and regulations. For further information, you should refer to the registration statement including its exhibits and amendments.

The SEC permits us to incorporate by reference in this prospectus some information that is contained in other documents we file with the SEC. This means that we may disclose important information by referring you to other documents that contain the information, including documents that we file after the date of this prospectus. The information that is incorporated by reference is considered to be part of this prospectus.

We incorporate by reference the documents listed below:

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Information in this prospectus may add to, update or change information in a previously filed document incorporated by reference in this prospectus. In that case, you should rely on the information in this prospectus. Information in a document filed after the date of this prospectus may add to, update or change information in this prospectus or in a previously filed document incorporated by reference in this prospectus. In that case, you should rely on the information in the later filed document.

You may request a copy of these filings and any amendments thereto at no cost, by writing or telephoning us. Those copies will not include exhibits to those documents unless the exhibits are specifically incorporated by reference in the documents or unless you specifically request them. Please direct your request to:

Investor Relations, Washington REIT, 6110 Executive Boulevard, Suite 800, Rockville, Maryland 20852, (301) 984-9400.

We maintain a website at www.writ.com. Statements made in our website are not part of this prospectus.

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PART II

INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION

The following table sets forth the expenses in connection with the issuance and distribution of the securities being registered, other than underwriting discounts and commissions. All amounts other than the registration fee are estimated.

ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS

The registrant’s declaration of trust dated April 5, 1996 provides that no trustee or officer of the registrant will be personally liable, in tort, contract or otherwise, in connection with the registrant’s property or the affairs of the registrant, or on account of his own acts or omissions to the registrant, or to any shareholder, trustee, officer or agent of the registrant except (1) to the extent that it is proved that the trustee or officer actually received an improper benefit or profit in money, property, or services, in which case the liability will not exceed the amount of the benefit or profit in money, property, or services actually received; or (2) to the extent that a judgment or other final adjudication adverse to the trustee or officer is entered in a proceeding based on a finding in the proceeding that the trustee’s or officer’s action or failure to act was the result of active and deliberate dishonesty and was material to the cause of action adjudicated in the proceeding. All persons must look solely to the registrant’s property for satisfaction of claims of any nature in connection with the affairs of the registrant.

The registrant’s declaration of trust further provides for the indemnification of the registrant’s trustees and officers to the fullest extent permitted by Section 2-418 of the Maryland General Corporation Law.

ITEM 16. EXHIBITS

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ITEM 17. UNDERTAKINGS

The undersigned registrant hereby undertakes:

1. To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:

(i) to include any prospectus required by Section 10(a)(3) of the Securities Act of 1933;

(ii) to reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than 20 percent change in the maximum aggregate offering price set forth in the “Calculation of Registration Fee” table in the effective registration statement; and

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(iii) To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement;

provided, however, that paragraphs (1) (i), (1) (ii) and (1) (iii) do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the Commission by the registrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the registration statement, or is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of the registration statement.

2. That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

3. To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.

4. That, for the purpose of determining liability under the Securities Act of 1933 to any purchaser:

(A) Each prospectus filed by the registrant pursuant to Rule 424(b)(3) shall be deemed to be part of the registration statement as of the date the filed prospectus was deemed part of and included in the registration statement; and

(B) Each prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5) or (b)(7) as part of a registration statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii) or (x) for the purpose of providing the information required by Section 10(a) of the Securities Act of 1933 shall be deemed to be part of and included in the registration statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the securities in the registration statement to which the prospectus relates, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. Provided, however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such effective date.

5. That, for the purpose of determining liability of the registrant under the Securities Act of 1933 to any purchaser in the initial distribution of the securities, the undersigned registrant undertakes that in a primary offering of securities of the undersigned registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser:

(i) Any preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule 424;

(ii) Any free writing prospectus relating to the offering prepared by or on behalf of the undersigned registrant or used or referred to by the undersigned registrant;

(iii) The portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant or its securities provided by or on behalf of the undersigned registrant; and

(iv) Any other communication that is an offer in the offering made by the undersigned registrant to the purchaser.

6. That, for purposes of determining any liability under the Securities Act of 1933, each filing of registrant’s annual report pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan’s annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

7. To file an application for the purpose of determining the eligibility of the trustee to act under subsection (a) of Section 310 of the Trust Indenture Act in accordance with the rules and regulations prescribed by the Commission under Section 305 (b)(2) of the Trust Indenture Act.

Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Securities Act of 1933 and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by

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the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act of 1933 and will be governed by the final adjudication of such issue.

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SIGNATURES

Pursuant to the requirements of the Securities Act, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Rockville, State of Maryland, on the 17th day of July, 2009.

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POWER OF ATTORNEY

Each person whose signature appears below constitutes and appoints George F. McKenzie, William T. Camp and Laura M. Franklin, and each of them, his true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all amendments, including post-effective amendments, to this registration statement, to any related Rule 462(b) registration statement and to any other documents filed with the Securities and Exchange Commission and to file the same, with all exhibits to the registration statement and other documents in connection with the registration statement, with the Securities and Exchange Commission or any other regulatory authority, grants to the attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the premises, as fully to all intents and purposes as he might or could do in person, and ratifies and confirms all that the attorney-in-fact and agent, or his substitute, may lawfully do or cause to be done by virtue of this power of attorney.

Pursuant to the requirements of the Securities Act, this registration statement has been signed below by the following persons in the capacities and on the date indicated:

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EXHIBIT INDEX