EXHIBIT 5.2 [LETTERHEAD OF BALLARD SPAHR ANDREWS & INGERSOLL, LLP] May 7, 2001 Senior Housing Properties Trust 400 Centre Street Newton, Massachusetts 02158 Sullivan & Worcester LLP One Post Office Square Boston, Massachusetts 02109 Re: Registration Statement on Form S-3, to be filed with the United States Securities and Exchange Commission on or about May 7, 2001 Ladies and Gentlemen: We have served as Maryland counsel to: (a) Senior Housing Properties Trust, a Maryland real estate investment trust (the "Company"); (b) HRES1 Properties Trust, HRES2 Properties Trust, SPTGEN Properties Trust, SPTIHS Properties Trust, SPTMISC Properties Trust, SPTMNR Properties Trust, SPTMRT Properties Trust, SPTSUN Properties Trust and SPTSUN II Properties Trust, each a Maryland real estate investment trust and a wholly owned subsidiary of the Company (collectively, the "REIT Trust Subsidiaries"); and (c) SNH Capital Trust I, SNH Capital Trust II, SNH Capital Trust III and SNH Capital Trust Holdings, each a Maryland business trust and a wholly owned subsidiary of the Company (collectively, the "Business Trust Subsidiaries," and together with the REIT Trust Subsidiaries, the "Subsidiaries"), in connection with certain matters of Maryland law arising out of the registration of the following securities having an aggregate initial offering price of up to $500,000,000 (collectively, the "Securities"): (i) debt securities of the Company ("Debt Securities"); (ii) preferred shares of beneficial interest, $.01 par value per share, of the Company ("Preferred Shares"); (iii) depositary shares representing whole or fractional interests in Preferred Shares ("Depositary Shares"); (iv) common shares of beneficial interest, $.01 par value per share, of the Company ("Common Shares"); (v) warrants to purchase Debt Securities, Preferred Shares, Depositary Shares or Common Shares of the Company ("Warrants"); (vi) trust preferred securities of the Business Trust Subsidiaries ("Trust Preferred Securities"); (vii) guarantees of Trust Preferred Securities by the Company ("Company Guarantees"); and (viii) guarantees of Debt Securities by the Subsidiaries ("Subsidiary Guarantees"), covered by the above-referenced Registration Statement, and all amendments thereto (the "Registration Statement"), filed by the Senior Housing Properties Trust Sullivan & Worcester LLP May 7, 2001 Page 2 Company with the United States Securities and Exchange Commission (the "Commission") under the Securities Act of 1933, as amended (the "1933 Act"). Capitalized terms used but not defined herein shall have the meanings given to them in the Registration Statement. In connection with our representation of the Company and the Subsidiaries, and as a basis for the opinion hereinafter set forth, we have examined originals, or copies certified or otherwise identified to our satisfaction, of the following documents (collectively, the "Documents"): 1. The Registration Statement and the related form of prospectus included therein in the form in which it was transmitted to the Commission under the 1933 Act; 2. The Amended and Restated Declaration of Trust, as amended, of the Company (the "Company Declaration of Trust"), certified as of a recent date by the State Department of Assessments and Taxation of Maryland (the "SDAT"); 3. The Declaration of Trust of each of the REIT Trust Subsidiaries (the "REIT Trust Subsidiary Declarations of Trust"), certified as of a recent date by the SDAT; 4. The Certificate of Trust of each of the Business Trust Subsidiaries, certified as of a recent date by the SDAT; 5. The Declaration of Trust of each of the Business Trust Subsidiaries (the "Business Trust Subsidiary Declarations of Trust"), certified as of the date hereof by a trustee of each of the Business Trust Subsidiaries; 6. The Bylaws of the Company, certified as of the date hereof by an officer of the Company; 7. The Bylaws of each of the REIT Trust Subsidiaries, certified as of the date hereof by an officer of each of the REIT Trust Subsidiaries; 8. A certificate of the SDAT as to the good standing of the Company, dated as of a recent date; 9. Certificates of the SDAT as to the good standing of each of the Subsidiaries, dated as of a recent date; 10. Resolutions adopted by the Board of Trustees of the Company (the "Company Board") relating to the registration of the Securities, certified as of the date hereof by an officer of the Company (the "Company Resolutions"); Senior Housing Properties Trust Sullivan & Worcester LLP May 7, 2001 Page 3 11. Resolutions adopted by the Board of Trustees of each of the REIT Trust Subsidiaries (each, a "REIT Board") relating to the registration of the Securities, certified as of the date hereof by an officer of each of the REIT Trust Subsidiaries (the "REIT Trust Subsidiary Resolutions"); 12. A certificate executed by an officer of the Company, an officer of each of the REIT Trust Subsidiaries and a trustee of each of the Business Trust Subsidiaries, dated as of the date hereof; and 13. Such other documents and matters as we have deemed necessary or appropriate to express the opinion set forth below, subject to the assumptions, limitations and qualifications stated herein. In expressing the opinion set forth below, we have assumed the following: 1. Each individual executing any of the Documents, whether on behalf of such individual or another person, is legally competent to do so. 2. Each individual executing any of the Documents on behalf of a party (other than the Company and the Subsidiaries) is duly authorized to do so. 3. Each of the parties (other than the Company and the Subsidiaries) executing any of the Documents has duly and validly executed and delivered each of the Documents to which such party is a signatory, and such party's obligations set forth therein are legal, valid and binding and are enforceable in accordance with all stated terms. 4. All Documents submitted to us as originals are authentic. All Documents submitted to us as certified or photostatic copies conform to the original documents. All signatures on all such Documents are genuine. All public records reviewed or relied upon by us or on our behalf are true and complete. All representations, warranties, statements and information contained in the Documents are true and complete. There has been no oral or written modification of or amendment to any of the Documents, and there has been no waiver of any provision of any of the Documents, by action or omission of the parties or otherwise. 5. The Securities will not be issued or transferred in violation of any restriction or limitation contained in the Company Declaration of Trust. 6. The Securities will not be issued or transferred in violation of any restriction or limitation contained in any REIT Trust Subsidiary Declaration of Trust. Senior Housing Properties Trust Sullivan & Worcester LLP May 7, 2001 Page 4 7. The Securities will not be issued or transferred in violation of any restriction or limitation contained in any Business Trust Subsidiary Declaration of Trust. 8. In accordance with the Company Resolutions, the issuance of, and certain terms of, the Securities to be issued by the Company from time to time will be authorized and approved by the Company Board, or a duly authorized committee thereof, in accordance with the Maryland REIT Law (such approval referred to herein as the "Company Trust Proceedings"). 9. In accordance with the REIT Trust Subsidiary Resolutions, the issuance of, and certain terms of, the Subsidiary Guarantees to be issued by the REIT Trust Subsidiaries from time to time will be authorized and approved by the applicable REIT Board, or a duly authorized committee thereof, in accordance with the Maryland REIT Law (such approval referred to herein as the "REIT Trust Proceedings"). 10. In accordance with the Business Trust Subsidiary Declarations of Trust, (a) an amended and restated declaration of trust or trust agreement authorizing the applicable Business Trust Subsidiary to issue a sufficient number of Trust Preferred Securities will be adopted by the applicable Business Trust Subsidiary prior to the issuance of any Securities by such Business Trust Subsidiary and (b) the issuance of, and certain terms of, the Securities to be issued by the Business Trust Subsidiaries from time to time will be approved by the applicable Business Trust Subsidiary trustees, or a duly authorized committee thereof, in accordance with the Maryland Business Trust Act (such approval referred to herein as the "Business Trust Proceedings"). 11. Each of the Subsidiaries will derive substantial benefit from the issuance of the Subsidiary Guarantees in connection with the issuance of Debt Securities. Based upon the foregoing, and subject to the assumptions, limitations and qualifications stated herein, it is our opinion that: 1. The Company is a real estate investment trust duly formed and existing under and by virtue of the laws of the State of Maryland and is in good standing with the SDAT. 2. Each of the REIT Trust Subsidiaries is a real estate investment trust duly formed and existing under and by virtue of the laws of the State of Maryland and is in good standing with the SDAT. 3. Each of the Business Trust Subsidiaries is a business trust duly formed and existing under and by virtue of the laws of the State of Maryland and is in good standing with the SDAT. Senior Housing Properties Trust Sullivan & Worcester LLP May 7, 2001 Page 5 4. Upon the completion of all Company Trust Proceedings relating to the Securities that are Debt Securities, the issuance of the Debt Securities will be duly authorized. 5. Upon the completion of all Company Trust Proceedings relating to the Securities that are Preferred Shares (the "Company Preferred Securities") and the due execution, countersignature and delivery of certificates evidencing Company Preferred Securities and assuming that the sum of (a) all Preferred Shares issued as of the date hereof, (b) any Preferred Shares issued between the date hereof and the date on which any of the Preferred Securities are actually issued (not including any of the Company Preferred Securities) and (c) the Company Preferred Securities will not exceed the total number of Preferred Shares that the Company is then authorized to issue, the Company Preferred Securities will be duly authorized and, when and if delivered against payment therefor in accordance with the Company Resolutions and the Company Trust Proceedings, will be validly issued, fully paid and nonassessable. 6. Upon the completion of all Company Trust Proceedings relating to the Securities that are Common Shares (the "Common Securities") and the due execution, countersignature and delivery of certificates evidencing Common Securities and assuming that the sum of (a) all Common Shares issued as of the date hereof, (b) any Common Shares issued between the date hereof and the date on which any of the Common Securities are actually issued (not including any of the Common Securities) and (c) the Common Securities will not exceed the total number of Common Shares that the Company is then authorized to issue, the Common Securities will be duly authorized and, when and if delivered against payment therefor in accordance with the Company Resolutions and the Company Trust Proceedings, will be validly issued, fully paid and nonassessable. 7. Upon the completion of all Company Trust Proceedings relating to the Securities that are Warrants, the issuance of the Warrants will be duly authorized. 8. Upon the completion of all Business Trust Proceedings relating to the Securities that are Trust Preferred Securities and the due execution, countersignature and delivery of certificates evidencing Trust Preferred Securities, the Trust Preferred Securities will be duly authorized and, when and if delivered against payment therefor in accordance with the Business Trust Subsidiary Declarations of Trust and the Business Trust Proceedings, will be validly issued. 9. Upon the completion of all Company Trust Proceedings relating to the Securities that are Company Guarantees, the issuance of the Company Guarantees will be duly authorized. Senior Housing Properties Trust Sullivan & Worcester LLP May 7, 2001 Page 6 10. Upon the completion of all applicable REIT Trust Proceedings and Business Trust Proceedings relating to the Securities that are Subsidiary Guarantees, the issuance of the Subsidiary Guarantees will be duly authorized. The foregoing opinion is limited to the laws of the State of Maryland, and we do not express any opinion herein concerning any other law or concerning any document not governed by the laws of the State of Maryland. The opinion expressed herein is subject to the effect of judicial decisions which may permit the introduction of parol evidence to modify the terms or the interpretation of agreements. We express no opinion as to compliance with, or the applicability of, federal or state securities laws, including the securities laws of the State of Maryland, or the Trust Indenture Act of 1939, as amended. We assume no obligation to supplement this opinion if any applicable law changes after the date hereof or if we become aware of any fact that might change the opinion expressed herein after the date hereof. This opinion is being furnished to you for submission to the Commission as an exhibit to the Registration Statement and, accordingly, may not be relied upon by, quoted in any manner to, or delivered to any other person or entity without, in each instance, our prior written consent. We hereby consent to the filing of this opinion as an exhibit to the Registration Statement and to the use of the name of our firm therein. In giving this consent, we do not admit that we are within the category of persons whose consent is required by Section 7 of the 1933 Act. Very truly yours, /s/ BALLARD SPAHR ANDREWS & INGERSOLL, LLP