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