Document:

SIXTH AMENDMENT TO AMENDED AND RESTATED LOAN AGREEMENT

	THIS SIXTH AMENDMENT TO AMENDED AND RESTATED LOAN AGREEMENT is dated
and effective as of December 28, 1999 (the "Sixth Amendment"), among OMNI ENERGY
SERVICES CORP., a Louisiana corporation (the "Borrower"), AMERICAN AVIATION
L.L.C., a Missouri limited liability company ("Aviation"), OMNI ENERGY SERVICES
CANADA CORP., an Alberta, Canada corporation formerly known as Hamilton
Drill Tech Inc. ("Omni Canada"), OMNI ENERGY SERVICES-ALASKA, INC., an Alaska
corporation ("Omni Alaska"), and HIBERNIA NATIONAL BANK, a national banking
association (the "Bank").

                             W I T N E S S E T H:

	WHEREAS, the Borrower, Aviation, Omni Marine & Supply, Inc., and the
Bank have heretofore entered into an Amended and Restated Loan Agreement dated
as of January 20, 1998, as amended by First Amendment thereto dated as of
March 31, 1998, as amended by Second Amendment thereto dated as of July 31,
1998, as amended by Third Amendment thereto dated as of October 30, 1998, as
amended by Fourth Amendment thereto dated as of March 29, 1999, and as
amended by Fifth Amendment thereto dated as of September 29, 1999 (as so
amended, the "Loan Agreement"), pursuant to which the Bank established in
favor of the Borrower certain credit facilities consisting of Acquisition
Loans, Revolving Loans, Bridge Loans, and a Term Loan;

	WHEREAS, subsequent to the execution of the Loan Agreement, Omni
Canada and Omni Alaska became wholly-owned subsidiaries of the Borrower, and
Omni Marine & Supply, Inc., a Louisiana corporation, was merged into the
Borrower;

	WHEREAS, the Loans by the Bank to the Borrower are guaranteed, in
solido, by Aviation,  Omni Canada, and Omni Alaska as the Guarantors;

	WHEREAS, the indebtedness evidenced by the Bridge Note has been
paid;

	WHEREAS, on July 12, 1999, the Borrower and the Bank, with the
consent of the Guarantors, agreed to reduce and did reduce the Revolving
Loan Commitment from $7,000,000.00 to $6,000,000.00;

	WHEREAS, pursuant to the Fifth Amendment, the Bank (i) extended the
scheduled July 31, 1999 principal payments on all Loans to October 31, 1999
and (ii) allowed the Borrower until October 31, 1999 to remedy all financial
covenant violations;

	WHEREAS, the Borrower is currently in default under the Loan Agreement
because of Borrower's failure to make scheduled principal payments.  In
addition, it is anticipated that the Borrower, as of December 31, 1999, will
not be in compliance with the financial covenant requirements contained in
Section 11.9(a) (minimum EBITDA) and Section 11.9(c) (minimum working capital)
of the Loan Agreement;

	WHEREAS, the Borrower, with the consent of the Guarantors, has
requested that the Lender (i) extend the maturity of the Notes from January 20,
2000 to March 31, 2000, (ii) restructure the principal payments due the Bank
under the Acquisition Note and the Term Note, and (iii) waive compliance with
certain financial covenant requirements as of December 31, 1999; and

	WHEREAS, subject to the terms and conditions of the Loan Agreement, as
amended by this Sixth Amendment, the Bank is willing to honor the Borrower's
requests.

	NOW, THEREFORE, the parties hereto, in consideration of the mutual
covenants hereinafter set forth and intending to be legally bound hereby,
agree as follows:

        1.      DEFINED TERMS.  Capitalized terms used herein which are defined
in the Loan Agreement are used herein with such defined meanings, except as may
be expressly set forth in this Sixth Amendment.

        2.      DEFINED TERMS REVISION.

                (a)     The definitions of the term "Acquisition Note", "Term
Note", and "Revolving Note" appearing in Section 1.1 of the Loan Agreement
are hereby supplemented to include each of the Allonges to such Notes as
provided in the Sixth Amendment.

		(b)	The definition of the term "Termination Date"
appearing in Section 1.1 of the Loan Agreement is hereby deleted and restated
as follows:

                        "Termination Date" shall mean, with respect to the
                        Bank's Commitments the earlier to occur of (i) March
                        31, 2000, or (ii) the date of termination of the
                        Commitments pursuant to Article XIII hereof.

		(c)	The following definition is hereby added to the Loan
Agreement:

                        "Sixth Amendment" shall mean that certain Sixth
                        Amendment to Amended and Restated Loan Agreement
                        dated as of December 28, 1999 by and among the
                        Borrower, Aviation, Omni Canada, Omni Alaska, and the
                        Bank.

        3.      TERMINATION DATE AND PRINCIPAL PAYMENTS.  Subject to the terms
and conditions of this Sixth Amendment, the Termination Date for all Loans is
as set forth in paragraph 2(b) above.  The final maturity date specified in
the Notes is extended from January 20, 2000 to March 31, 2000.  Further, the
amounts and dates for principal payments due under the Term Note and the
Acquisition Note shall be as set forth in an Allonge to each such Note to be
executed by Borrower.  The maturity date extension also shall be set forth in
an Allonge to each of the Notes to be executed by Borrower.

        4.      REVISION TO ARTICLE III (ACQUISITION LOANS) OF THE LOAN
AGREEMENT.  Subject to the terms and conditions of the Loan Agreement, as
amended by this Sixth Amendment, the parties agree as follows:  Section 3.2.1
of the Loan Agreement, as modified by the Fifth Amendment, is hereby amended
to reflect that the final maturity of the Acquisition Note is March 31, 2000.

        5.      REVISION TO ARTICLE V (FEES) OF THE LOAN AGREEMENT.  The
following new Section is hereby added to the Loan Agreement as Section 5.6:

                SECTION 5.6. EXTENSION FEE.  The Borrower shall pay to the
                Bank an extension fee of $150,000.00 on the earlier to
                occur of (i) March 31, 2000 or (ii) the payment in full of all
                amounts due under the Notes.

        6.      CONFIRMATION OF COLLATERAL DOCUMENTS.  All of the liens,
privileges, priorities and equities existing and to exist under and in
accordance with the terms of the Collateral Documents are hereby renewed,
extended and carried forward as security for all of the Loans and all other
debts, obligations and liabilities of the Borrower to the Bank.  Further, the
Guarantors hereby confirm their solidary liability for all Loans.

        7.      CONDITIONS PRECEDENT.  The agreements and obligation of the
Bank as set forth in this Sixth Amendment are subject to satisfaction of the
following conditions precedent:

		(a)	The Borrower shall have executed and delivered to the
Bank this Sixth Amendment, an Allonge to each of the Revolving Note, the
Acquisition Note, and the Term Note, and all other documents required by the
Loan Agreement, as amended by this Sixth Amendment, and the Guarantors shall
have executed and delivered to the Bank this Sixth Amendment, and all other
documents required by the Loan Agreement, as amended by this Sixth Amendment,
all in form and substance and in such number of counterparts as may be required
by the Bank;

		(b)	The representations, warranties, and covenants of the
Borrower and the Guarantors as set forth in the Loan Agreement, as amended by
this Sixth Amendment, or in any Related Document furnished to the Bank in
connection herewith, shall be and remain true and correct;

		(c)	The Bank shall have received a favorable legal opinion
of counsel to the Borrower and the Guarantors, in form, scope and substance
satisfactory to the Bank;

		(d)	The Bank shall have received certified resolutions of
the Borrower and the Guarantors authorizing the execution of all documents
and instruments contemplated by this Sixth Amendment;

		(e)	Except for Events of Default pertaining to Loan
payment and financial covenant violations as addressed in this Sixth
Amendment, no Default or Event of Default shall exist or shall result from
renewal of the Loans as provided for herein;

		(f)	The Borrower and the Guarantors shall have provided
the Bank with all financial statements, reports and certificates required by
the Loan Agreement, as amended by this Sixth Amendment;

		(g)	The Bank shall have received the articles of
incorporation and bylaws, as amended, of the Borrower and the articles of
organization, operating agreement, articles of incorporation, and bylaws, as
amended, of the Guarantors, and the Bank's counsel shall have reviewed the
foregoing documents and is satisfied with the validity, due authorization and
enforceability thereof and of all Related Documents;

		(h)	The Bank shall have received evidence acceptable to
the Bank and its counsel that its Encumbrances affecting the Collateral shall
have a first priority position, subject only to Permitted Encumbrances;

		(i)	Except as provided in (e) above, there shall have
occurred no Material Adverse Change;

                (j)     The Bank's due diligence and review of all financial
information provided by the Borrower and the Guarantors, and the Bank's field
audit of the Borrower's books and records, shall be satisfactory to the Bank;

		(k)	The Bank's receipt of a current listing of all senior
and subordinated debt of the Borrower (on a consolidated basis);

		(l)	The Borrower must maintain insurance acceptable to
the Bank, naming Bank as additional insured and/or loss payee, and deliver to
Bank evidence of such insurance coverages;

		(m)	Interest payments on all Loans must be paid current
and remain current;

		(n)	Advantage Capital must execute a written subordination
agreement in favor of Bank and The CIT Group/Equipment Financing, Inc., whereby
Advantage Capital subordinates all present and future indebtedness owed by
Borrower, which agreement must be delivered to, and in form and substance
satisfactory to, Bank;

		(o)	The Borrower must make a $450,000.00 principal payment
to Bank;

                (p) All legal fees by Bank's counsel pertaining to matters
involving Borrower, including preparation of this Sixth Amendment, must be paid
by Borrower; and

 		(q)	Advantage Capital must provide an additional
$1,000,000.00 in equity or subordinated debt to the Borrower.

        8.      REVISION TO ARTICLE XI (AFFIRMATIVE COVENANTS) OF THE
LOAN AGREEMENT.  The parties to this Sixth Amendment acknowledge the Borrower's
anticipated failure to comply as of December 31, 1999 with the financial
covenants set forth in Section 11.9(a) and (c) of the Loan Agreement.
Subject to the terms and conditions of this Sixth Amendment, the Bank agrees to
waive Borrower's compliance as of December 31, 1999 with the financial covenant
requirements set forth in Section 11.9(a) and (c) of the Loan Agreement.

        9.      EXTENSION OF LOANS.  The Bank agrees to extend the Termination
Date for all Loans to January 31, 2001 if the Borrower has raised additional
capital (subordinated debt or equity) of $3,000,000.00 by March 31, 2000, and
satisfactory evidence thereof has been furnished to the Bank.

        10.     REPRESENTATION.  On and as of the date hereof, and after giving
effect to this Sixth Amendment, the Borrower and the Guarantors confirm,
reaffirm and restate the representations and warranties set forth in the
Loan Agreement and the Collateral Documents; provided, that each reference to
the Loan Agreement herein shall be deemed to include the Loan Agreement as
amended by this Sixth Amendment.

        11.     PAYMENT OF EXPENSES.  The Borrower agrees to pay or reimburse
the Bank for all legal fees and expenses of counsel to the Bank in connection
with the transactions contemplated by this Sixth Amendment.

	12.	WAIVER OF DEFENSES; RELEASE OF LIABILITIES.  THE BORROWER AND
THE GUARANTORS ACKNOWLEDGE THAT THIS SIXTH AMENDMENT CONTAINS A RENEWAL OF THE
LOANS, AN EXTENSION OF PAYMENTS, AND A FORBEARANCE BY THE BANK.  IN
CONSIDERATION OF THE BANK'S EXECUTION OF THIS SIXTH AMENDMENT, THE BORROWER
AND THE GUARANTORS DO HEREBY IRREVOCABLY WAIVE ANY AND ALL CLAIMS, CAUSES OF
ACTION, AND/OR DEFENSES TO PAYMENT ON ANY INDEBTEDNESS OWED BY ANY OF THEM TO
THE BANK THAT MAY EXIST AS OF THE DATE OF EXECUTION OF THIS SIXTH AMENDMENT.
FURTHER, BORROWER AND THE GUARANTORS HEREBY AGREE THAT ALL DISPUTES AND CLAIMS
WHATSOEVER OF ANY KIND OR NATURE WHICH BORROWER AND/OR ANY OF THE GUARANTORS
PRESENTLY HAS OR MAY HAVE AGAINST BANK, WHETHER PRESENTLY KNOWN OR UNKNOWN,
WHICH BORROWER AND/OR ANY OF THE GUARANTORS COULD HAVE ASSERTED AGAINST BANK,
ARE FULLY AND FINALLY RELEASED, COMPROMISED AND SETTLED.  BORROWER AND THE
GUARANTORS, INDIVIDUALLY AND FOR THEMSELVES, THEIR, SUCCESSORS IN INTEREST
AND ASSIGNS, DO HEREBY EXPRESSLY RELEASE AND FOREVER RELIEVE, DISCHARGE AND
GRANT FULL ACQUITTANCE TO BANK FOR AND FROM ANY AND ALL CAUSES OF ACTION,
SUITS, CLAIMS, DEBTS, OBLIGATIONS OR LIABILITIES OF ANY NATURE WHATSOEVER,
KNOWN OR UNKNOWN, ALLEGED OR NOT ALLEGED, WHICH BORROWER AND/OR ANY OF THE
GUARANTORS HAS OR MAY HAVE AGAINST BANK, ITS AGENTS, OFFICERS, EMPLOYEES,
DIRECTORS AND SHAREHOLDERS AS OF THE DATE HEREOF.  THIS WAIVER AND RELEASE
SHALL BE CONSTRUED TO HAVE THE BROADEST POSSIBLE SCOPE.

        13.     AMENDMENTS.  THE LOAN AGREEMENT AND THIS SIXTH AMENDMENT ARE
CREDIT OR LOAN AGREEMENTS AS DESCRIBED IN LA. R.S.6: SECTION 1121, ET SEQ.
THERE ARE NO ORAL AGREEMENTS BETWEEN THE BANK, THE BORROWER,  OMNI ALASKA,
AVIATION, AND OMNI CANADA.  THE LOAN AGREEMENT, AS AMENDED BY THIS SIXTH
AMENDMENT, SETS FORTH THE ENTIRE AGREEMENT OF THE PARTIES WITH RESPECT TO
THE SUBJECT MATTER HEREOF AND SUPERSEDES ALL PRIOR WRITTEN AND ORAL
UNDERSTANDINGS BETWEEN THE BORROWER, AVIATION, OMNI ALASKA, OMNI CANADA AND
THE BANK, WITH RESPECT TO THE MATTERS HEREIN SET FORTH.  THE LOAN AGREEMENT,
AS AMENDED BY THIS SIXTH AMENDMENT, MAY NOT BE MODIFIED OR AMENDED EXCEPT BY
A WRITING SIGNED AND DELIVERED BY THE BORROWER, AVIATION,  OMNI ALASKA,
OMNI CANADA AND THE BANK.

        14.     GOVERNING LAW:  COUNTERPARTS.  This Sixth Amendment shall be
governed by and construed in accordance with the laws of the State of
Louisiana.  This Sixth Amendment may be executed in any number of counterparts,
all of which counterparts, when taken together, shall constitute one and the
same instrument.

        15.     CONTINUED EFFECT.  Except as expressly modified herein, the
Loan Agreement shall continue in full force and effect.  The Loan Agreement
as amended by this Sixth Amendment is hereby ratified and confirmed by the
parties hereto.

	IN WITNESS WHEREOF, the parties hereto have caused this Sixth
Amendment to be executed and delivered as of the date hereinabove provided
by the authorized officers each hereunto duly authorized.

                                        OMNI ENERGY SERVICES CORP.

                                        By:_______________________________
                                             Name:  John H. Untereker
                                             Title:  President,  Chief
                                                    Executive Officer

                                        AMERICAN AVIATION L.L.C.
                                        By: Omni Energy Services Corp.,
                                            as Sole Member

                                        By:________________________________
                                             Name:  John H. Untereker
                                             Title:  President, Chief
                                                    Executive Officer

                                        OMNI ENERGY SERVICES CANADA CORP.
                                        (f/k/a HAMILTON DRILL TECH INC.)

                                        By:________________________________
                                             Name:  John H. Untereker
                                             Title:  Treasurer

                                        OMNI ENERGY SERVICES- ALASKA, INC.

                                        By:________________________________
                                             Name:  John H. Untereker
                                             Title:  Treasurer

                                        HIBERNIA NATIONAL BANK

                                        By:________________________________
                                             Name:  Tammy M. Angelety
                                             Title:    Vice PresidentExhibit 10.1

                               ADVISORY AGREEMENT

         THIS AGREEMENT is entered into effective as of October 12, 1999, by and
among Senior Housing  Properties  Trust, a Maryland real estate investment trust
(the "Company"),  Reit Management & Research,  Inc., a Delaware corporation (the
"Advisor"),  and,  solely with respect to certain  non-competition  covenants in
Section 14 of this Agreement, Barry M. Portnoy and Gerard M. Martin.

         WHEREAS,  the  Advisor is a  corporation  organized  for the purpose of
providing  management and administrative  services with respect to the ownership
of real property and interests in real property;

         WHEREAS,  in connection  with its  investments,  the Company desires to
make use of the advice and assistance of the Advisor and  information  available
to  the   Advisor,   and  to  have  the   Advisor   undertake   the  duties  and
responsibilities  hereinafter  set  forth,  on  behalf  of  and  subject  to the
supervision of the Company's Board of Trustees (the "Trustees"), all as provided
herein;

         WHEREAS, the Advisor is willing to render such services, subject to the
supervision of the Trustees, on the terms and conditions  hereinafter set forth;
and

         WHEREAS,  the Company has  qualified and intends to continue to qualify
as a real estate  investment  trust as defined in the  Internal  Revenue Code of
1986, as amended  (said Code, as in effect from time to time,  together with any
regulations  and  rulings  thereunder,  being  hereinafter  referred  to as  the
"Internal Revenue Code").

         NOW,  THEREFORE,  in consideration of the mutual  agreements herein set
forth, the parties hereto agree as follows:

         1.  General  Duties  of the  Advisor.  The  Advisor  shall use its best
efforts to present to the Company a continuing and suitable  investment  program
consistent with the investment  policies and objectives of the Company.  Subject
to the  supervision  of the Trustees and under their  direction,  and consistent
with the provisions of the Declaration of Trust, the Advisor shall:

                  (a)  serve  as the  Company's  investment  advisor,  with  its
         obligations to include providing  research and economic and statistical
         data in connection  with the  Company's  investments  and  recommending
         changes in the Company's investment policies, when appropriate;

                  (b)  investigate  and  evaluate   investment,   financing  and
         refinancing  opportunities  and make  recommendations  concerning these
         opportunities to the Trustees;

<PAGE>

                  (c) manage the Company's short-term investments, including the
         acquisition and sale of money market instruments in accordance with the
         Company's policies;

                  (d) administer the day-to-day operations of the Company;

                  (e)   investigate,   negotiate  and  enter  into   appropriate
         contracts on behalf of the Company with  individuals,  corporations and
         other entities (i) for the purchase,  lease or servicing of real estate
         and related  interests and otherwise in  furtherance  of the investment
         activities of the Company and (ii) for the financing and refinancing of
         investments and otherwise in furtherance of the financing activities of
         the Company;

                  (f) upon request of the Trustees,  act as  attorney-in-fact or
         agent in  acquiring  and  disposing  of  investments  and  funds of the
         Company and in  handling,  prosecuting  and  settling any claims of the
         Company;

                  (g) obtain for the Company, when appropriate,  the services of
         property  managers or management  firms to perform  customary  property
         management  services with regard to the real estate properties owned by
         or in the  possession of the Company,  and perform such  supervisory or
         monitoring  services  on  behalf of the  Company  with  respect  to the
         activities of those property  managers or management  firms as would be
         performed by a prudent owner,  including but not limited to supervising
         the activities of property managers or management  firms,  visiting the
         properties,  participating in property management budgeting,  reviewing
         the  accounting  of  property  income and  expenses,  reporting  on the
         financial   status  of  the  properties  and  reviewing  and  approving
         marketing plans,  but excluding the actual on-site property  management
         functions performed by said property managers or management firms;

                  (h) obtain for the Company  other  services as may be required
         for  other  activities  relating  to the  investment  portfolio  of the
         Company;

                  (i)  administer  the  day-to-day  bookkeeping  and  accounting
         functions as are required  for the proper  management  of the assets of
         the  Company,  contract  for audits and prepare or cause to be prepared
         reports as may be required by any governmental  authority in connection
         with the ordinary conduct of the Company's business,  including without
         limitation,  periodic reports, returns or statements required under the
         Securities Exchange Act of 1934, as amended, the Internal Revenue Code,
         the  securities  and tax  statutes  of any  jurisdiction  in which  the
         Company is obligated to file such reports, or the rules and regulations
         promulgated under any of the foregoing;

                  (j) provide  office  space,  office  equipment  and the use of
         accounting or computing equipment when required,  and provide personnel
         necessary for the performance of the foregoing services; and

                  (k)  from  time  to  time,  or at any  time  requested  by the
         Trustees,  make  reports  to the  Trustees  of its  performance  of the
         foregoing services to the Company.

                                       -2-
<PAGE>

         In  performing  its  services  under this  Agreement,  the  Advisor may
utilize facilities,  personnel and support services of various of its Affiliates
(as defined below).  The Advisor shall be responsible for paying such Affiliates
for their  personnel and support  services and  facilities out of its own funds.
Notwithstanding the above, the Company may request,  and will pay for the direct
costs of,  services  provided by  Affiliates  of the Advisor  provided that such
request is approved by a majority vote of the Trustees who are not Affiliates of
the Advisor (the "Independent Trustees").

         As  used in this  Agreement,  the  term  "Affiliate"  means,  as to the
Advisor,  (i) any  other  Person  (as  defined  below)  directly  or  indirectly
controlling,  controlled by or under common  control with the Advisor,  (ii) any
other Person that owns beneficially,  directly or indirectly,  five percent (5%)
or more of the  outstanding  capital  stock,  shares or equity  interests of the
Advisor, or (iii) any officer, director, trustee, employee or general partner of
the Advisor or of any Person controlling,  controlled by or under common control
with  the  Advisor.   The  term   "Person"   means  and  includes   individuals,
corporations,  limited  partnerships,  general  partnerships,  limited liability
companies, joint stock companies or associations,  joint ventures, associations,
companies,  trusts,  banks,  trust companies,  land trusts,  business trusts and
other entities.

         2. Bank Accounts.  The Advisor shall establish and maintain one or more
bank  accounts in its own name or in the name of the Company,  and shall collect
and deposit into the account or accounts and  disburse  therefrom  any monies on
behalf of the Company; provided that no funds in any account shall be commingled
with any funds of the Advisor or any other  Person.  The Advisor shall from time
to time render an  appropriate  accounting  of  collections  and payments to the
Trustees and to the auditors of the Company.

         3. Records. The Advisor shall maintain appropriate books of account and
records relating to services performed  pursuant to this Agreement,  which books
of account and records shall be available for inspection by  representatives  of
the Company upon reasonable notice during ordinary business hours.

         4. Information  Furnished Advisor. The Trustees shall at all times keep
the  Advisor  fully  informed  with  regard to the  investment  policies  of the
Company,  the capitalization  policy of the Company, and generally the Trustees'
then-current  intentions  as to the future of the Company.  In  particular,  the
Company shall notify the Advisor  promptly of its intention to sell or otherwise
dispose of any of the Company's  investments or to make any new investment.  The
Company  shall  furnish  the  Advisor  with a  certified  copy of all  financial
statements,  a signed copy of each  report  prepared  by  independent  certified
public  accountants  and other  information  with  regard to its  affairs as the
Advisor may from time to time reasonably request. The Company shall retain legal
counsel and  accountants to provide legal and accounting  advice and services as
the Advisor or the Trustees  shall deem  necessary or  appropriate to adequately
perform  the  functions  of the  Company,  and shall  have  legal or  accounting
opinions and advice as the Advisor shall reasonably request.

         5. REIT Qualification.  Anything else in this Agreement to the contrary
notwithstanding,  the Advisor shall refrain from any action (including,  without
limitation,  the  furnishing  or rendering of services to tenants of property or
managing real  property)  which,  in its judgment made in good faith,  or in the
judgment of the  Trustees as  transmitted  to the Advisor in writing,  would (a)
adversely

                                       -3-
<PAGE>

affect the status of the  Company as a real estate  investment  trust as defined
and limited in the Internal Revenue Code or which would make the Company subject
to the Investment Company Act of 1940, as amended, or (b) violate any law, rule,
regulation  or statement  of policy or any  governmental  body or agency  having
jurisdiction  over the Company or over its  securities,  or (c) otherwise not be
permitted by the  Declaration  of Trust or Bylaws of the  Company,  as in effect
from time to time,  except if the action  shall be ordered by the  Trustees,  in
which event the Advisor  shall  promptly  notify the  Trustees of the  Advisor's
judgment that the action would adversely  affect the Company's status or violate
any law, rule or regulation or the Declaration of Trust or Bylaws of the Company
and shall  refrain  from  taking the action  pending  further  clarification  or
instructions from the Trustees. In addition,  the Advisor shall take affirmative
steps  which,  in its  judgment  made in good faith,  or in the  judgment of the
Trustees as  transmitted  to the Advisor in writing,  would  prevent or cure any
action described in (a), (b) or (c) above.

         6.  Self-Dealing.  Neither the Advisor nor any Affiliate of the Advisor
shall,  directly or  indirectly,  sell any  property or assets to the Company or
purchase any property or assets from the  Company,  lease any property  from the
Company or borrow any money from the  Company,  except as approved by a majority
of the  Independent  Trustees.  In  addition,  except as  otherwise  provided in
Sections  1,  9 or 10  hereof,  or  except  as  approved  by a  majority  of the
Independent Trustees, neither the Advisor nor any Affiliate of the Advisor shall
receive  any  commission  or other  remuneration,  directly  or  indirectly,  in
connection  with  the  activities  of  the  Company  or  any  joint  venture  or
partnership in which the Company is a party.  The foregoing  prohibitions  shall
not apply to the leases affecting three nursing homes between the Company and an
Affiliate  of the  Advisor,  which  leases were  entered  into by the  Company's
predecessor in interest prior to the date of this Agreement.

         7. No Partnership or Joint Venture. The Company and the Advisor are not
partners  or joint  venturers  with  each  other and  neither  the terms of this
Agreement nor the fact that the Company and the Advisor have joint  interests in
any one or more investments  shall be construed so as to make them such partners
or joint venturers or impose any liability on either of them.

         8.  Fidelity  Bond.  The  Advisor  shall not be  required  to obtain or
maintain a fidelity  bond in  connection  with the  performance  of its services
hereunder.

         9.  Compensation.  The  Advisor  shall  be paid an  advisory  fee  (the
"Advisory Fee") for the services  rendered by it to the Company pursuant to this
Agreement. The Advisory Fee for each full fiscal year of the Company shall equal
the sum of  one-half  of one percent  (0.5%) of the Annual  Average  Transferred
Assets (as defined below), plus seven-tenths of one percent (0.7%) of the Annual
Average Invested Capital (as defined below) up to $250,000,000, plus one-half of
one percent (0.5%) of the Annual Average  Invested Capital equal to or exceeding
$250,000,000.  The Advisory Fee shall be prorated for any partial fiscal year of
the Company during the term of this Agreement. In addition, the Advisor shall be
paid an annual  incentive fee (the "Incentive  Fee") for each fiscal year of the
Company,  commencing  with the Company's  fiscal year ending  December 31, 2000,
consisting  of a number of shares of the  Company's  common shares of beneficial
interest  ("Common  Shares")  with an aggregate  value  (determined  as provided
below) equal to fifteen percent (15%) of the product of (i) the weighted average
Common Shares of the Company outstanding on

                                       -4-
<PAGE>

a diluted  basis  during  such fiscal year and (ii) the excess if any of FFO Per
Share (as  defined  below) for such  fiscal  year over the FFO Per Share for the
preceding  fiscal year;  provided  however,  in no event shall the Incentive Fee
payable in respect of any fiscal  year exceed $.02  multiplied  by the  weighted
average  number of Common  Shares  outstanding  on a diluted  basis  during such
fiscal year.  (The Advisory Fee and Incentive Fee are  hereinafter  collectively
referred to as the "Fees").  No Incentive Fee shall be payable for the Company's
fiscal year ending December 31, 1999.

         For purposes of this Agreement:  "Annual Average Transferred Assets" of
the Company,  for any fiscal year,  means the daily weighted average during such
fiscal year (or, in the case of the  Company's  fiscal year ending  December 31,
1999,  during the period  commencing with the date hereof and ending on December
31,  1999)  of the  aggregate  book  value  of the  Transferred  Assets,  before
depreciation,  reserves for bad debts and other similar  noncash items.  "Annual
Average Invested  Capital" of the Company,  for any fiscal year, means the daily
weighted  average  during such  fiscal  year (or,  in the case of the  Company's
fiscal year ending December 31, 1999, during the period commencing with the date
hereof and  ending on  December  31,  1999) of the  aggregate  book value of the
consolidated assets of the Company,  excluding the Transferred Assets, invested,
directly or indirectly,  in equity interests in and loans secured by real estate
and  personal  property  owned in  connection  with  such  real  estate,  before
depreciation,  reserves for bad debts and other similar noncash items.  "FFO Per
Share," for any fiscal year,  means (i) the Company's  consolidated  net income,
computed in accordance with generally  accepted  accounting  principles,  before
gain or loss on sale of properties and  extraordinary  items,  depreciation  and
other non-cash  items,  including the Company's pro rata share of the funds from
operations  (determined in accordance  with this clause) for such fiscal year of
(A) any  unconsolidated  subsidiary  and (B) any  entity  for which the  Company
accounts  by the  equity  method of  accounting,  divided  by (ii) the  weighted
average  number of Common  Shares  outstanding  on a diluted  basis  during such
fiscal year; and "Transferred  Assets" means the assets owned by the Company and
its subsidiaries on the date hereof. FFO Per Share for the Company's fiscal year
ending December 31, 1999 shall be calculated on a pro forma basis adjusted as if
the transactions  described in the notes to the unaudited pro forma consolidated
financial  statements  of the Company  contained in the  Company's  Registration
Statement No. 333- 69703 filed with the Securities  and Exchange  Commission (as
amended through the date hereof) had occurred as of January 1, 1999.

         The Advisory Fee shall be computed and paid by the Company on a year to
date basis within thirty (30) days following the end of each fiscal month. These
computations  shall be based upon the Company's  monthly or quarterly  financial
statements, as the case may be, and shall be in reasonable detail. The Incentive
Fee shall be computed and paid by the Company  within thirty (30) days following
the public availability of the Company's annual audited financial statements for
each fiscal year. A copy of the computations  shall promptly be delivered to the
Advisor accompanied by payment of the Fees shown thereon to be due and payable.

         The  aggregate  Fees paid for each  fiscal  year  shall be  subject  to
adjustment  as of the end of each that  year.  On or  before  the 30th day after
public  availability of the Company's  annual audited  financial  statements for
each  fiscal  year,  the  Company  shall  deliver to the  Advisor  an  Officer's
Certificate (a "Certificate") reasonably acceptable to the Advisor and certified
by an authorized  officer of the Company  setting  forth (i) the Annual  Average
Transferred Assets, the Annual Average

                                       -5-
<PAGE>

Invested  Capital and FFO Per Share for the Company's fiscal year ended upon the
immediately  preceding  December 31, and (ii) the Company's  computation  of the
Fees payable for the fiscal year.  The  Certificate  shall be  accompanied by an
examination of the  calculation of Annual Average  Invested  Capital and FFO Per
Share by the Company's independent certified public accountants.

         If the  aggregate  Fees  payable  for any  fiscal  year as shown in the
Certificate  exceed the aggregate  amounts  previously paid by the Company,  the
Company  shall pay the  deficit to the  Advisor at the time of  delivery  of the
Certificate.

         If the  aggregate  Fees  payable  for any  fiscal  year as shown in the
Certificate are less than the aggregate amounts  previously paid by the Company,
the Company  shall  specify in the  Certificate  whether the Advisor  should (i)
refund  to the  Company  an amount  equal to the  difference  or (ii)  grant the
Company  a  credit  against  the  Fees  next  coming  due in the  amount  of the
difference until that amount has been fully paid or otherwise discharged.

         Payment  of the  Incentive  Fee  shall be made by  issuance  of  Common
Shares.  The number of shares to be issued in payment of the Incentive Fee shall
be the whole number of shares  (disregarding any fraction) equal to the value of
the Incentive Fee, as provided  above,  divided by the average  closing price of
the Common Shares on the New York Stock Exchange during the month before the end
of the fiscal year for which the computation is made.

         10. Compensation for Additional  Services.  If, and to the extent that,
the  Company  shall  request  the  Advisor to render  services  on behalf of the
Company  other than those  required to be rendered by the Advisor in  accordance
with the terms of this Agreement, those additional services shall be compensated
separately  on terms to be agreed upon  between the Advisor and the Company from
time to time.  In addition,  the Company may make awards to the employees of the
Advisor and others under the Company's  1999  Incentive  Share Award Plan or any
plan adopted by the Company from time to time in replacement thereof.

         11.  Expenses  of the  Advisor.  Without  regard  to  the  compensation
received by the Advisor from the Company pursuant to this Agreement, the Advisor
shall bear the following expenses incurred in connection with the performance of
its duties under this Agreement:

                (a)  employment  expenses  of  the  personnel  employed  by  the
         Advisor,  including but not limited to, salaries,  wages, payroll taxes
         and the cost of employee benefit plans;

                (b)  fees and  travel  and  other  expenses  paid to  directors,
         officers and employees of the Advisor, except fees and travel and other
         expenses  of  persons  who are  Trustees  or  officers  of the  Company
         incurred in their capacities as Trustees or officers of the Company;

                (c) rent, telephone,  utilities, office furniture, equipment and
         machinery  (including  computers,  to the  extent  utilized)  and other
         office expenses of the Advisor, except to the extent those expenses may
         relate solely to an office  maintained by the Company separate from the
         office of the Advisor, if any; and

                                      -6-
<PAGE>

                (d)   miscellaneous    administrative   expenses   incurred   in
         supervising,   monitoring  and  inspecting   real  property  and  other
         investments of the Company or relating to performance by the Advisor of
         its obligations hereunder.

         12. Expenses of the Company.  Except as expressly otherwise provided in
this  Agreement,  the  Company  shall pay all its  expenses  not  payable by the
Advisor,  and,  without  limiting  the  generality  of  the  foregoing,   it  is
specifically  agreed that the following expenses of the Company shall be paid by
the Company and shall not be paid by the Advisor:

                  (a) the cost of borrowed money;

                  (b)  taxes  on  income  and  taxes  and  assessments  on  real
         property, if any, and all other taxes applicable to the Company;

                  (c)  legal,  auditing,  accounting,  underwriting,  brokerage,
         listing,   reporting,   registration  and  other  fees,  and  printing,
         engraving and other expenses and taxes incurred in connection  with the
         issuance,  distribution,  transfer,  trading,  registration  and  stock
         exchange  listing  of  the  Company's  securities,  including  transfer
         agent's, registrar's and indenture trustee's fees and charges;

                  (d) expenses of  organizing,  restructuring,  reorganizing  or
         terminating  the  Company,  or of  revising,  amending,  converting  or
         modifying the Company's organizational documents;

                  (e) fees and travel and other  expenses  paid to Trustees  and
         officers of the Company in their  capacities  as such (but not in their
         capacities as officers or employees of the Advisor) and fees and travel
         and other expenses paid to advisors,  contractors,  mortgage servicers,
         consultants,  and other agents and independent  contractors employed by
         or on behalf of the Company;

                  (f)  expenses   directly   connected  with  the   acquisition,
         disposition  or  ownership of real estate  interests or other  property
         (including  the  costs  of  foreclosure,   insurance  premiums,   legal
         services,  brokerage  and  sales  commissions,   maintenance,   repair,
         improvement and local management of property), other than expenses with
         respect  thereto of employees of the Advisor,  to the extent that those
         expenses are to be borne by the Advisor pursuant to Section 11 above;

                  (g) all  insurance  costs  incurred  in  connection  with  the
         Company  (including  officer and  trustee  liability  insurance)  or in
         connection  with any officer and trustee  indemnity  agreement to which
         the Company is a party;

                  (h) expenses  connected with payments of dividends or interest
         or contributions in cash or any other form made or caused to be made by
         the Trustees to holders of securities of the Company;

                                       -7-

<PAGE>

                  (i) all expenses  connected with  communications to holders of
         securities  of the  Company and other  bookkeeping  and  clerical  work
         necessary  to   maintaining   relations  with  holders  of  securities,
         including the cost of printing and mailing  certificates for securities
         and  proxy  solicitation  materials  and  reports  to  holders  of  the
         Company's securities;

                  (j) legal, accounting and auditing fees and expenses; and

                  (k)  expenses  relating  to any  office or  office  facilities
         maintained by the Company separate from the office of the Advisor.

         13.  Limits  of  Advisor   Responsibility.   The  Advisor   assumes  no
responsibility  other than to render the services described herein in good faith
and shall not be  responsible  for any action of the  Trustees in  following  or
declining to follow any advice or  recommendation  of the Advisor.  The Advisor,
its shareholders, directors, officers, employees, agents and Affiliates will not
be liable to the Company, its shareholders,  or others, except by reason of acts
constituting bad faith,  willful or wanton misconduct or gross  negligence.  The
Company  shall  reimburse,   indemnify  and  hold  harmless  the  Advisor,   its
shareholders,  directors,  officers and employees, agents and Affiliates for and
from any and all expenses,  losses, damages,  liabilities,  demands, charges and
claims of any  nature  whatsoever  in  respect  of or  arising  from any acts or
omissions of the Advisor  undertaken  in good faith and in  accordance  with the
standard  set  forth  above  pursuant  to the  authority  granted  to it by this
Agreement.

         14.  Other  Activities  of the  Advisor and its  Stockholders.  Nothing
herein shall prevent the Advisor from engaging in other activities or businesses
or from  acting as  advisor to any other  Person  (including  other real  estate
investment  trusts)  even  though  that  Person  has  investment   policies  and
objectives similar to those of the Company; provided,  however, that neither the
Advisor nor Barry M. Portnoy or Gerard M. Martin shall provide advisory services
to, make competitive direct investment in or, in the case of Messrs. Portnoy and
Martin,  serve as a director  or officer  of, any other real  estate  investment
trust  which is  principally  engaged in the  business  of  ownership  of senior
apartments,  congregate communities,  assisted living or nursing home properties
without the consent of a majority of the Independent Trustees. The Advisor shall
be free from any obligation to present to the Company any particular  investment
opportunity  which  comes to the  Advisor.  In  addition,  except  as  expressly
provided  herein,  nothing herein shall prevent any  stockholder or Affiliate of
the Advisor from engaging in any other  business or from  rendering  services of
any  kind to any  other  corporation,  partnership  or other  entity  (including
competitive business activities). Without limiting the foregoing provisions, the
Advisor  agrees,  upon the  request of any Trustee of the  Company,  to disclose
certain  investment  information  concerning  the  Advisor  or  certain  of  its
Affiliates,  provided, however, that the disclosure shall be required only if it
does not constitute a breach of any fiduciary duty or obligation of Advisor.

         Directors,  officers,  employees  and  agents of the  Advisor or of its
Affiliates  may serve as  Trustees,  officers,  employees,  agents,  nominees or
signatories  of the Company.  When  executing  documents or otherwise  acting in
capacities for the Company,  these persons shall use their respective  titles in
the Company.

                                       -8-
<PAGE>

         15.  Term,  Termination.  This  Agreement  shall  continue in force and
effect  until  December  31,  1999  (the  "Initial  Term"),   and  is  renewable
periodically  thereafter  by the  Company,  if a  majority  of  the  Independent
Trustees determine that the Advisor's performance has been satisfactory.

         Paragraph  18  hereof  shall   govern  the  rights,   liabilities   and
obligations of the parties upon  termination of this  Agreement;  and, except as
provided in paragraph 18, a termination  shall be without  further  liability of
either party to the other than for breach or violation of this  Agreement  prior
to termination.

         16. Assignment. The Company may terminate this Agreement at any time in
the  event  of  its  assignment  by  the  Advisor  except  an  assignment  to  a
corporation,  partnership,  trust or other successor  entity which may take over
the property and carry on the affairs of the Advisor; provided that, following a
permitted  assignment,  the persons who controlled the operations of the Advisor
immediately  prior  to  the  assignment  shall  control  the  operation  of  the
successor,  including the  performance of its duties under this  Agreement,  and
this successor shall be bound by the same  restrictions by which the Advisor was
bound prior to such assignment.  A permitted  assignment or any other assignment
of this  Agreement by the Advisor shall bind the assignee  hereunder in the same
manner as the Advisor is bound hereunder. This Agreement shall not be assignable
by the Company without the prior written  consent of the Advisor,  except in the
case of any  assignment by the Company to a trust,  corporation,  partnership or
other entity which is the successor to the Company,  in which case the successor
shall be bound hereby and by the terms of said assignment in the same manner and
to the same extent as the Company is bound hereby.

         17. Default, Bankruptcy, Etc. of the Advisor. At the sole option of the
Company, this Agreement may be terminated immediately by written notice from the
Trustees to the Advisor if any of the following events shall have occurred:

                (a) the  Advisor  shall  have  violated  any  provision  of this
         Agreement and, after written notice from the Trustees of the violation,
         shall have failed to cure the default within thirty (30) days;

                (b) a petition  shall have been filed against the Advisor for an
         involuntary proceeding under any applicable  bankruptcy,  insolvency or
         other similar law now or hereafter in effect,  and that petition  shall
         not have been dismissed  within ninety (90) days of filing;  or a court
         having  jurisdiction  shall  have  appointed  a  receiver,  liquidator,
         assignee,  custodian,  trustee, sequestrator or similar official of the
         Advisor for any  substantial  portion of its  property,  or ordered the
         winding up or liquidation of its affairs, and that appointment or order
         shall not have been rescinded or vacated within ninety (90) days of the
         appointment or order; or

                (c) the Advisor  shall have  commenced  a  voluntary  proceeding
         under any applicable bankruptcy, insolvency or other similar law now or
         hereafter in effect, or shall have made any general  assignment for the
         benefit of creditors,  or shall have failed  generally to pay its debts
         as they became due.

                                       -9-
<PAGE>

         The Advisor  agrees that, if any of the events  specified in paragraphs
(b) or (c) of this Section 17 occur,  it will give written notice thereof to the
Trustees within seven (7) days following the occurrence of the event.

         18. Action Upon  Termination.  From and after the effective date of any
termination  of this  Agreement  pursuant to Sections  15, 16 or 17 hereof,  the
Advisor shall be entitled to no compensation for services rendered hereunder for
the remainder of the then-current term of this Agreement but shall be paid, on a
pro  rata  basis,  all   compensation  due  for  services   performed  prior  to
termination,  including,  without  limitation,  a pro rata  portion  of the then
current year's Incentive Fee. Upon termination, the Advisor immediately shall:

                  (a) pay over to the Company all monies  collected and held for
         the  account of the Company by it  pursuant  to this  Agreement,  after
         deducting  therefrom  any accrued and unpaid Fees  (including,  without
         limitation,  a pro rata  portion of the then current  year's  Incentive
         Fee, and reimbursements for its expenses to which it is then entitled);

                  (b) deliver to the  Trustees a full and  complete  accounting,
         including a statement  showing all sums collected by it and a statement
         of all  sums  held  by it for  the  period  commencing  with  the  date
         following the date of its last accounting to the Trustees; and

                  (c) deliver to the Trustees all property and  documents of the
         Company then in its custody or possession.

         The  amount  of Fees  paid to the  Advisor  upon  termination  shall be
subject to adjustment pursuant to the following mechanism. On or before the 30th
day  after  public  availability  of  the  Company's  annual  audited  financial
statements for the fiscal year in which  termination  occurs,  the Company shall
deliver to the Advisor a  Certificate  reasonably  acceptable to the Advisor and
certified by an authorized  officer of the Company  setting forth (i) the Annual
Average  Transferred  Assets,  the Annual Average  Invested  Capital and FFO Per
Share  for the  Company's  fiscal  year  ended  upon the  immediately  preceding
December 31, and (ii) the Company's computation of the Fees (including,  without
limitation, a pro rata portion of the then current year's Incentive Fee) payable
upon the date of termination.  The Certificate  shall be accompanied by a review
of the calculation of the Annual Average  Transferred Assets, the Annual Average
Invested Capital and FFO Per Share by the Company's independent certified public
accountants.

         If the annual Fees owed upon  termination  as shown in the  Certificate
exceed the Fees paid by the Company upon termination,  the Company shall include
its  check  for the  deficit  and  deliver  the  same to the  Advisor  with  the
Certificate.

         The  Incentive  Fee for any partial  fiscal year will be  determined by
multiplying  the Incentive Fee for such year  (assuming  this  Agreement were in
effect for the entire year) by a fraction,  the numerator of which is the number
of days in the portion of such year during which this  Agreement  was in effect,
and the denominator of which shall be 365.

                                      -10-
<PAGE>

         If the annual Fees owed upon  termination  as shown in the  Certificate
are less than the Fees paid by the Company upon  termination,  the Advisor shall
remit to the Company its check in an amount equal to the difference.

         19.  Trustee  Action.  Wherever  action on the part of the  Trustees is
contemplated by this Agreement, action by a majority of the Trustees,  including
a majority of the Independent Trustees, shall constitute the action provided for
herein.

         20.  Arbitration.  The Company  and the Advisor  agree that any and all
disputes and disagreements  arising out of or relating to this Agreement,  other
than  actions or claims  for  injunctive  relief or claims  raised in actions or
proceedings brought by third parties, shall be resolved through negotiations or,
if the dispute is not so  resolved,  through  binding  arbitration  conducted in
Boston,  Massachusetts under the  J.A.M.S./Endispute  Comprehensive  Arbitration
Rules and Procedures,  with the following  amendments to those rules. First, the
parties  agree  that in no event  shall the  arbitration  from  commencement  to
issuance of an award take longer than 180 days.  Second,  the parties agree that
the arbitration tribunal shall consist of three arbitrators and that the parties
elect not to have the optional appeal procedure  provided for in Rule 23. Third,
in lieu of the  depositions  permitted in Rule 15(E) and (F), the parties  agree
that the only  depositions  shall be a single  deposition to last no longer than
one six-hour day that each party may take of the opposing party or an individual
under the control of the opposing  party.  Judgment on the award rendered by the
arbitrators may be entered in any court having jurisdiction thereof.

         21. TRUSTEES AND SHAREHOLDERS  NOT LIABLE.  THE DECLARATION OF TRUST OF
THE COMPANY, A COPY OF WHICH, TOGETHER WITH ALL AMENDMENTS, IS DULY FILED IN THE
OFFICE OF THE STATE DEPARTMENT OF ASSESSMENTS AND TAXATION OF MARYLAND  PROVIDES
THAT  THE  NAME  SENIOR  HOUSING   PROPERTIES   TRUST  REFERS  TO  THE  TRUSTEES
COLLECTIVELY  AS  TRUSTEES,  BUT NOT  INDIVIDUALLY  OR  PERSONALLY.  NO TRUSTEE,
OFFICER,  SHAREHOLDER,  EMPLOYEE  OR AGENT OF THE  COMPANY  SHALL BE HELD TO ANY
PERSONAL  LIABILITY,  JOINTLY  OR  SEVERALLY,  FOR ANY  OBLIGATION  OF, OR CLAIM
AGAINST,  THE COMPANY.  ALL PERSONS DEALING WITH THE COMPANY,  IN ANY WAY, SHALL
LOOK  ONLY  TO THE  ASSETS  OF THE  COMPANY  FOR THE  PAYMENT  OF ANY SUM OR THE
PERFORMANCE OF ANY OBLIGATION.

         22.  Notices.  Any notice,  report or other  communication  required or
permitted to be given  hereunder shall be in writing unless some other method of
giving the  notice,  report or other  communication  is accepted by the party to
whom it is  given,  and  shall  be given by  being  delivered  at the  following
addresses to the parties hereto:

         If to the Company:

                           Senior Housing Properties Trust
                           400 Centre Street
                           Newton, Massachusetts 02458
                           Attention:  President

                                      -11-

<PAGE>

         If to the Advisor:

                           Reit Management & Research, Inc.
                           400 Centre Street
                           Newton, Massachusetts 02458
                           Attention:  President

         Such notice shall be effective upon its receipt by the party to whom it
is directed.  Either party hereto may at any time give notice to the other party
in writing of a change of its address for purposes of this paragraph 22.

         23. Amendments.  The Agreement shall not be amended, changed, modified,
terminated, or discharged in whole or in part except by an instrument in writing
signed by each of the  parties  hereto,  or by their  respective  successors  or
assigns, or otherwise as provided herein.

         24.  Successors and Assigns.  This Agreement  shall be binding upon any
successors or permitted assigns of the parties hereto as provided herein.

         25.  Governing Law. The provisions of this Agreement  shall be governed
by  and  construed  in  accordance   with  the  laws  of  The   Commonwealth  of
Massachusetts.

         26. Captions.  The captions included herein have been inserted for ease
of reference only and shall not be construed to affect the meaning, construction
or effect of this Agreement.

         27. Entire Agreement.  This Agreement  constitutes the entire agreement
of the parties  hereto with respect to the subject  matter hereof and supersedes
and cancels any pre-existing agreements with respect to its subject matter.

         28. Attorneys' Fees. If any legal action is brought for the enforcement
of this  Agreement,  or  because  of an  alleged  dispute,  breach,  default  or
misrepresentation  in connection  with any of the provisions of this  Agreement,
the  successful  or  prevailing  party or parties  shall be  entitled to recover
reasonable  attorneys'  fees and other costs incurred in that action in addition
to any other relief to which it or they may be entitled.

         29. Survival.  The provisions of Sections 13, 14, 18, 20, 21, 22 and 28
of this Agreement shall survive the termination hereof.

                  [Remainder of page intentionally left blank.]

                                      -12-

<PAGE>

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed as an instrument  under seal by their duly authorized  officers,  as of
the day and year first above written.

                             SENIOR HOUSING PROPERTIES TRUST

                             By: /s/ David J. Hegarty
                                 Its: President, Chief Operating Officer and
                                       Secretary

                             REIT MANAGEMENT & RESEARCH, INC.

                             By: /s/ John Popeo
                                   Its: Treasurer and Chief Financial Officer

SOLELY AS TO SECTION 14 HEREOF:

/s/ Gerard M. Martin
Gerard M. Martin

/s/ Barry M. Portnoy
Barry M. Portnoy

                                      -13-

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00006-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00006-of-00352.parquet"}]]