Exhibit 8.1


                      [Sullivan & Worcester LLP Letterhead]


                                  July 1, 2002



Hospitality Properties Trust
400 Centre Street
Newton, Massachusetts  02458

Ladies and Gentlemen:

         In connection with the registration by Hospitality  Properties Trust, a
Maryland real estate  investment trust (the  "Company"),  of $125,000,000 of its
6.85% Senior Notes due July 15, 2012 the  following  opinion is furnished to you
to be filed with the Securities and Exchange  Commission  (the "SEC") as Exhibit
8.1 to the Company's  Current Report on Form 8-K, to be filed within one week of
the date hereof,  under the  Securities  Exchange  Act of 1934,  as amended (the
"Exchange Act").

         We have  acted  as  counsel  for the  Company  in  connection  with its
Registration  Statement  on Form  S-3,  File No.  333-84064  (the  "Registration
Statement"),  under the Securities  Act of 1933, as amended (the "Act"),  and we
have  reviewed  originals or copies,  certified or otherwise  identified  to our
satisfaction, of the Registration Statement, corporate records, certificates and
statements of officers and  accountants of the Company and of public  officials,
and such other documents as we have  considered  relevant and necessary in order
to furnish the opinion hereinafter set forth. Specifically, and without limiting
the generality of the foregoing, we have reviewed: (i) the Company's declaration
of trust,  as amended and restated,  and the by-laws of the Company,  as amended
and  restated;   (ii)  the  prospectus  supplement  dated  June  27,  2002  (the
"Prospectus  Supplement")  to the final  prospectus  dated  March  20,  2002 (as
supplemented by the Prospectus Supplement,  the "Prospectus") which forms a part
of the Registration Statement; and (iii) the sections in the Company's Form 10-K
for  the  year  ended   December  31,  2001   captioned   "Federal   Income  Tax
Considerations"  and  "ERISA  Plans,  Keogh  Plans  and  Individual   Retirement
Accounts."  With respect to all questions of fact on which the opinion set forth
below is based, we have assumed the accuracy and completeness of and have relied
on the  information  set  forth in the  Prospectus  and the Form 10-K and in the
documents  incorporated therein by




Hospitality Properties Trust
July 1, 2002
Page 2


reference, and on representations made to us by officers of the Company. We have
not independently verified such information.

         The opinion set forth below is based upon the Internal  Revenue Code of
1986,  as  amended,  the  Treasury  Regulations  issued  thereunder,   published
administrative  interpretations  thereof,  and judicial  decisions  with respect
thereto, all as of the date hereof (collectively,  the "Tax Laws"), and upon the
Employee  Retirement Income Security Act of 1974, as amended,  the Department of
Labor regulations issued thereunder,  published  administrative  interpretations
thereof,  and judicial decisions with respect thereto, all as of the date hereof
(collectively, the "ERISA Laws"). No assurance can be given that the Tax Laws or
the ERISA Laws will not change. In preparing the discussions with respect to Tax
Laws and ERISA Laws matters in the sections of the Form 10-K captioned  "Federal
Income  Tax  Considerations"  and  "ERISA  Plans,  Keogh  Plans  and  Individual
Retirement  Accounts," we have made certain  assumptions  and expressed  certain
conditions and qualifications therein, all of which assumptions,  conditions and
qualifications  are  incorporated  herein  by  reference.  With  respect  to all
questions of fact on which our opinion is based, we have assumed the initial and
continuing truth, accuracy and completeness of: (i) the information set forth in
the Form 10-K,  the  Prospectus,  and in the documents  incorporated  therein by
reference;  and (ii)  representations  made to us by  officers of the Company or
contained  in the Form  10-K or the  Prospectus  in each such  instance  without
regard to  qualifications  such as "to the best  knowledge of" or "in the belief
of".

         We have relied upon,  but not  independently  verified,  the  foregoing
assumptions.  If any of the foregoing  assumptions  are inaccurate or incomplete
for  any  reason,  or if the  transactions  described  in the  Form  10-K or the
Prospectus  (or the documents  incorporated  in either by  reference)  have been
consummated  in a  manner  that is  inconsistent  with the  manner  contemplated
therein, our opinion as expressed below may be adversely affected and may not be
relied upon.

         Based upon and subject to the foregoing, we are of the opinion that the
discussions  with  respect to Tax Laws and ERISA Laws matters in the sections of
the Form 10-K captioned  "Federal Income Tax  Considerations"  and "ERISA Plans,
Keogh  Plans  and  Individual  Retirement  Accounts,"  as  supplemented  by  the
discussion in the Prospectus  Supplement  captioned "Material Federal Income Tax
Considerations,"  in all material respects are accurate and fairly summarize the
Tax Laws issues and the ERISA Laws issues addressed therein,  and hereby confirm
that the opinions of counsel referred to in said sections represent our opinions
on the subject matter thereof.

         Our  opinion  above is  limited  to the  matters  specifically  covered
hereby, and we have not been asked to address, nor have we addressed,  any other
matters or any other  transactions.  Further,  we disclaim  any  undertaking  to
advise you of any  subsequent  changes of the  matters  stated,  represented  or
assumed herein or any subsequent changes in the Tax Laws or the ERISA Laws.

         This opinion is intended solely for the benefit and use of the Company,
and is not to be used,  released,  quoted, or relied upon by anyone else for any
purpose  (other than as required by




Hospitality Properties Trust
July 1, 2002
Page 3


law) without our prior written consent. We hereby consent to filing of a copy of
this opinion as an exhibit to the Form 8-K, which is  incorporated  by reference
in the Company's  Registration  Statement under the Act. In giving such consent,
we do not  thereby  admit that we come  within  the  category  of persons  whose
consent  is  required  under  Section  7 of  the  Act or  under  the  rules  and
regulations of the SEC promulgated thereunder.

                                               Very truly yours,

                                               /s/ Sullivan & Worcester LLP

                                               SULLIVAN & WORCESTER LLP