HRPT PROPERTIES TRUST
10-K405, 2000-03-30
REAL ESTATE INVESTMENT TRUSTS
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                    FORM 10-K

 [X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934

                   For the Fiscal Year Ended December 31, 1999
                                       OR

 [ ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
     EXCHANGE ACT OF 1934

         For the transition period from ______________ to ______________

                          Commission File Number 1-9317

                              HRPT PROPERTIES TRUST
             (Exact name of registrant as specified in its charter)

           Maryland                                     04-6558834
(State or other jurisdiction                           (IRS Employer
      of incorporation)                              Identification No.)

                 400 Centre Street, Newton, Massachusetts 02458
               (Address of principal executive offices) (Zip Code)

                                  617-332-3990
              (Registrant's telephone number, including area code)

           Securities registered pursuant to Section 12(b) of the Act:
<TABLE>
<CAPTION>
                                                                              Name of exchange on
                  Title of each class                                          which registered
<S>                                                                         <C>

           Common Shares of Beneficial Interest                              New York Stock Exchange
    7.25% Convertible Subordinated Debentures due 2001                       New York Stock Exchange
7.5% Convertible Subordinated Debentures due 2003, Series A                  New York Stock Exchange
</TABLE>

        Securities registered pursuant to Section 12(g) of the Act: None

Indicate  by check  mark  whether  the  registrant:  (1) has filed  all  reports
required to be filed by Section 13 or 15(d) of the  Securities  Exchange  Act of
1934  during  the  preceding  12 months  (or for such  shorter  period  that the
registrant was required to file such reports),  and (2) has been subject to such
filing requirements for the past 90 days. Yes [X] No [ ]

Indicate by check mark if disclosure of delinquent  filers  pursuant to Item 405
of Regulation  S-K is not contained  herein,  and will not be contained,  to the
best of registrant's  knowledge,  in definitive proxy or information  statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. [X]

<PAGE>
         The aggregate  market value of the voting stock of the registrant  held
by  non-affiliates  was $1.0 billion based on the $8 closing price per share for
such stock on the New York Stock  Exchange on March 27,  2000.  For  purposes of
this calculation,  1,134,373 shares held by HRPT Advisors,  Inc., 1,000,000 held
by REIT  Management & Research,  Inc.  solely in its capacity as voting  trustee
under a voting trust  agreement or a proxy,  and an aggregate of 131,399  shares
held by the  Trustees  and  executive  officers  of the  registrant,  have  been
included in the number of shares held by affiliates.

         Number of the registrant's Common Shares of Beneficial Interest,  $0.01
par value ("Shares"), outstanding as of March 27, 2000: 131,934,347.

DOCUMENTS INCORPORATED BY REFERENCE

         Part  III of this  Annual  Report  on  Form  10-K  is  incorporated  by
reference  from  our  definitive  Proxy  Statement  for the  annual  meeting  of
shareholders currently scheduled to be held on May 9, 2000.

CERTAIN IMPORTANT FACTORS

         This Annual Report on Form 10-K contains  statements  which  constitute
forward  looking  statements  within the  meaning of the  Securities  Litigation
Reform Act of 1995. These  statements  appear in a number of places in this Form
10-K regarding our intent, belief or expectations with respect to possible sales
of properties,  possible joint ventures,  possible share buy backs, expansion of
our portfolio,  our ability to pay  distributions,  policies and plans regarding
investments,  financings,  our tax status as a real estate  investment trust and
our  access to debt or equity  capital  markets  or to other  sources  of funds.
Readers  are  cautioned  that  any  such  forward  looking  statements  are  not
guarantees of future events and involve risks and  uncertainties and that actual
events and results may differ  materially  from those  contained  in the forward
looking  statements  as a result of various  factors.  Such factors  include the
status of the economy, property market conditions,  competition,  and changes in
federal, state and local legislation.  The accompanying information contained in
this Annual Report on Form 10-K,  including  under the headings  "Business"  and
"Management's  Discussion  and  Analysis of Financial  Condition  and Results of
Operations",   identifies   other  important   factors  that  could  cause  such
differences.

         THE  AMENDED  AND  RESTATED  DECLARATION  OF  TRUST  ESTABLISHING  HRPT
PROPERTIES  TRUST,  DATED  JULY 1,  1994,  A COPY OF  WHICH,  TOGETHER  WITH ALL
AMENDMENTS THERETO, IS DULY FILED IN THE OFFICE OF THE DEPARTMENT OF ASSESSMENTS
AND TAXATION OF THE STATE OF MARYLAND,  PROVIDES THAT THE NAME "HRPT  PROPERTIES
TRUST" REFERS TO THE TRUSTEES UNDER THE  DECLARATION OF TRUST,  COLLECTIVELY  AS
TRUSTEES,  BUT NOT  INDIVIDUALLY  OR PERSONALLY,  AND THAT NO TRUSTEE,  OFFICER,
SHAREHOLDER,  EMPLOYEE  OR AGENT OF HRPT  PROPERTIES  TRUST SHALL BE HELD TO ANY
PERSONAL  LIABILITY,  JOINTLY  OR  SEVERALLY,  FOR ANY  OBLIGATION  OF, OR CLAIM
AGAINST,  HRPT PROPERTIES TRUST. ALL PERSONS DEALING WITH HRPT PROPERTIES TRUST,
IN ANY WAY,  SHALL  LOOK  ONLY TO THE  ASSETS OF HRPT  PROPERTIES  TRUST FOR THE
PAYMENT OF ANY SUM OR THE PERFORMANCE OF ANY OBLIGATION.


<PAGE>
<TABLE>
<CAPTION>

                              HRPT PROPERTIES TRUST
                          1999 FORM 10-K ANNUAL REPORT


                                Table of Contents

                                     Part I
                                                                                                            Page
<S>              <C>                                                                                        <C>
Item 1.           Business........................................................................           1
Item 2.           Properties......................................................................           18
Item 3.           Legal Proceedings...............................................................           19
Item 4.           Submission of Matters to a Vote of Security Holders.............................           19

                                     Part II

Item 5.           Market for Registrant's Common Stock and Related Shareholder Matters............           19
Item 6.           Selected Financial Data.........................................................           21
Item 7.           Management's Discussion and Analysis of Financial Condition and Results of
                      Operations..................................................................           22
Item 7A.          Quantitative and Qualitative Disclosures About Market Risk......................           27
Item 8.           Financial Statements and Supplementary Data.....................................           28
Item 9.           Changes in and Disagreements with Accountants on Accounting and Financial
                      Disclosure..................................................................           28

                                    Part III

Item 10.          Directors and Executive Officers of the Registrant..............................           *
Item 11.          Executive Compensation..........................................................           *
Item 12.          Security Ownership of Certain Beneficial Owners and Management..................           *
Item 13.          Certain Relationships and Related Transactions..................................           *

                  *   Incorporated by reference from our Proxy Statement for the
                      Annual Meeting of Shareholders  currently  scheduled to be
                      held on May 9, 2000,  to be filed  pursuant to  Regulation
                      14A.

                                     Part IV

Item 14.          Exhibits, Financial Statement Schedules and Reports on Form 8-K.................           29

</TABLE>


<PAGE>
         References in this Annual Report on Form 10-K to the "Company" or "HRP"
include consolidated subsidiaries, unless the context indicates otherwise.

                                     PART I
Item 1.  Business

         The  Company.  HRPT  Properties  Trust  ("HRP"  or the  "Company")  was
organized  on  October  9,  1986 as a  Maryland  real  estate  investment  trust
("REIT").  We invest in office buildings.

         As of December 31,  1999,  we owned 195 office  properties  for a total
investment of $2.7 billion at cost and a depreciated book value of $2.5 billion.
In  addition,  we had  equity  investments  representing  49.3%  and 7.1% of the
outstanding  common  shares of  Senior  Housing  Properties  Trust  ("SNH")  and
Hospitality  Properties Trust ("HPT"),  respectively,  with approximate carrying
values of $201.8 million and $109.3 million, respectively, for total real estate
investments  of  approximately  $3.0 billion.  The  properties  are described in
greater detail below in "Properties".


                                       1
<PAGE>

         Our  principal  executive  offices  are  located at 400 Centre  Street,
Newton, Massachusetts 02458, and our telephone number is (617) 332-3990.

         Investment  Policy and Method of Operation.  Our  investment  goals are
current income for distribution to  shareholders,  capital growth resulting from
appreciation in the residual value of owned  properties,  and  preservation  and
protection of shareholders' capital. Our income is derived primarily from rent.

         Our day to day operations are conducted by REIT  Management & Research,
Inc.  ("RMR"),  our investment  manager.  RMR provides  investment,  management,
property  management  and  administrative  services  to us. RMR  originates  and
presents  investment  opportunities  to our  Board of  Trustees.  In  evaluating
potential investments, we consider factors such as: the historical and projected
rents  received and likely to be received  from the  property,  the historic and
expected operating expenses,  including real estate taxes, incurred and expected
to be incurred at the properties; the growth, tax and regulatory environments of
the market in which the property is located; the quality, experience, and credit
worthiness  of  the  property's  tenants;  an  appraisal  of  the  property,  if
available;  occupancy  and demand for similar  properties  in the same or nearby
markets;  the  construction  quality,  physical  condition  and  design  of  the
property;  the  geographic  area  and  type  of  property;  and the  pricing  of
comparable properties as evidenced by recent arms length market sales.

         Our  investments  are  generally  structured  using leases with minimum
and/or   additional   rent  and  escalation   provisions,   joint  ventures  and
partnerships with affiliated or unaffiliated parties,  commitments or options to
purchase  interests in real estate,  mergers or any combination of the foregoing
that will best suit the particular investment.

         In connection with our current bank credit facility,  we have agreed to
obtain lender  approval  before  exceeding  investment  concentrations  based on
certain  criteria.  No  limits,  other than  those  imposed  by our bank  credit
facility,  have been set on the  number of  properties  in which we will seek to
invest,  or on the  concentration  of investments  involving any one facility or
geographical  area;  however,  our Board of Trustees  consider  concentration of
investments in determining whether to make new or increase existing investments.

         We have in the past  considered  and may in the future  consider,  from
time to time, the acquisition of or merger with other  companies  engaged in the
same business as us; however,  we have no present  agreements or  understandings
concerning any such acquisition or merger.

         Borrowing  Policy.  In  addition  to the  use  of  equity,  we  utilize
short-term  and  long-term  borrowings  to finance  investments.  We have a bank
credit facility of $500 million.  In February 1999, the bank credit facility was
amended to allow for the  spin-off of our senior  housing  properties.  The bank
credit  facility (which is guaranteed by most of our  subsidiaries)  is used for
acquisition funding on an interim basis until equity or long-term debt is raised
and for working capital and general business  purposes.  Outstanding  borrowings
under the bank credit facility at December 31, 1999 were $132 million.

         Our  borrowing  guidelines  established  by our Board of  Trustees  and
covenants  in various debt  agreements  prohibit us from  maintaining  a debt to
equity ratio of greater  than 1 to 1. At December  31, 1999,  our debt to equity
ratio was .89 to 1. Our senior unsecured debt also imposes covenants on us which
may limit our ability to borrow.  The  Declaration  of Trust  prohibits  us from
incurring secured and unsecured indebtedness which in the aggregate exceeds 300%
of our net assets,  unless  approved by a majority of the Board of Trustees  not
affiliated  with RMR.  There can be no  assurance  that debt capital will in the
future be available at reasonable rates to fund our operations or growth.

                                       2
<PAGE>

Business Developments Since January 1, 1999

Investments

         During 1999, we acquired 61 office properties for an aggregate purchase
price of $516.5 million.

Financing

         During 1999, we issued the following  senior  unsecured fixed rate term
notes:  $90 million of 7.875% Senior Notes due 2009 issued in March 1999 and $65
million  of 8.375%  Senior  Notes due 2011  issued in June  1999.  The notes are
callable at par on April 15, 2002 and June 15,  2003,  respectively.  The $150.2
million  aggregate net proceeds from these notes were used to repay amounts then
outstanding  under our revolving bank credit facility.  In addition,  we assumed
$32.4  million  of  secured  mortgage  notes  payable  in  connection  with  the
acquisition  of eight  office  properties.  These  mortgage  notes  payable bear
interest at rates ranging from 7.02% to 9.12% and mature between 2004 and 2008.

         In  February  1999,  we amended  our  unsecured  revolving  bank credit
facility with a group of banks for which Dresdner Bank AG acts as agent to allow
for the spin off of our senior housing properties.

Other Developments

         In 1999,  we disposed of 14 senior  housing  properties,  including  12
senior  housing  properties  leased to an  affiliate,  for net proceeds of $82.2
million and recognized a gain of $8.3 million.  As part of the sale of 12 of the
senior  housing  properties  during  March of 1999,  we  provided a $60  million
mortgage loan which was paid in full in June 1999.

         During 1999, we received  regularly  scheduled  principal  payments and
repayments  on mortgages  secured by eight senior  housing  properties  totaling
$15.6  million.  We also received a $1 million loan repayment from an affiliate.
During  1999,  we wrote down the  carrying  value of two real  estate  mortgages
secured by four nursing home  properties  by $5 million to reflect our estimated
future discounted realizable value.

         On October 12, 1999,  we spun-off  50.7% of our 100% owned  subsidiary,
SNH, by  distributing  13,190,763  common shares of SNH to our  shareholders  of
record on  October 8, 1999 (the  "Spin-Off").  SNH is a real  estate  investment
trust that invests  principally in income  producing  senior housing real estate
and  prior  to  the  Spin-Off  had  26,000,000  common  shares  outstanding.  In
connection with the Spin-Off, we received $200 million from SNH that was used to
repay amounts outstanding on our revolving bank credit facility.

         In connection with the Spin-Off, we agreed to pay all costs relating to
the Spin-Off of SNH. At December 31, 1999, total costs incurred for the Spin-Off
were  $16.7  million,  which  included  costs  of  distributing  SNH  shares  to
shareholders,  legal and accounting  fees,  Securities  and Exchange  Commission
filing fees,  New York Stock  Exchange  listing  fees and the up-front  costs of
establishing  SNH's bank credit  facility,  the first $200  million  proceeds of
which was paid to us.

         Since the  Spin-Off,  our  investment in SNH is accounted for using the
equity method of accounting. Prior to the Spin-Off, the operating results of SNH
were  included in our results of  operations.  At December  31,  1999,  we owned
12,809,237 common shares of beneficial  interest of SNH with a carrying value of
$201.8  million and a market  value,  based on quoted market  prices,  of $158.5
million.

         During January and February 2000, two of SNH's tenants,  accounting for
approximately  48% of SNH's  revenues,  filed for  bankruptcy.  SNH is currently
negotiating  with these  tenants  and  evaluating  its  options,  including  the
possibility of reducing rent, selling properties or operating certain properties
for its own behalf.  Based on  estimates  of future  cash flows from  properties
leased to these two tenants,  SNH has  recognized  an impairment in the carrying
value  of  certain  properties  and  loans  totaling  $30  million.  This  value
impairment  has  increased  SNH's  expenses and reduced SNH's net income for the
year ended December 31, 1999. The Company has recognized  $14.8 million of SNH's
asset impairment loss on its consolidated statement of income for the year ended
December  31,  1999,  through  its  49.3%  ownership  interest  in  SNH.  In the
short-term,  the level of dividends paid by SNH to the Company in future periods
will depend on the outcome of SNH's  negotiations  with these two  tenants.  See
"Item 7. Management's Discussion and Analysis of Financial Condition and Results
of Operations."

                                       3
<PAGE>

The Investment Manager

         RMR is a Delaware  corporation  owned by Gerard M.  Martin and Barry M.
Portnoy.  RMR's  principal  executive  offices are located at 400 Centre Street,
Newton,  Massachusetts 02458, and its telephone number is (617) 332-3990.  As of
January 1, 1998,  we entered  into  separate  investment  advisor  and  property
management  agreements with RMR. RMR provides investment,  management,  property
management services and administrative services to us. In addition, an affiliate
of RMR also provides garage management  services to some of our properties.  RMR
also  acts as the  investment  manager  to SNH and  HPT and has  other  business
interests. The Directors of RMR are Gerard M. Martin, Barry M. Portnoy and David
J. Hegarty.  The officers of RMR are David J. Hegarty,  President and Secretary,
John G. Murray,  Executive Vice President,  John C. Popeo,  Treasurer,  and Ajay
Saini, John A. Mannix, David M. Lepore, Thomas M. O'Brien and Jennifer B. Clark,
Vice Presidents. Gerard M. Martin and Barry M. Portnoy are our managing trustees
and John A. Mannix, John C. Popeo, David M. Lepore and Jennifer B. Clark are our
officers.

Employees

         As of March 27, 2000, we had no employees.  RMR, which  administers our
day-to-day operations, had 200 full-time employees and three active directors as
of that date.

Competition.

         Investing  in and  operating  office  buildings  is a very  competitive
business. We compete against other REIT's,  numerous financial  institutions and
numerous  individuals and public and private  companies who are actively engaged
in this  business.  We do not believe we have a dominant  position in any of the
geographic  markets in which we operate but some of our competitors are dominant
in  selected  markets.  Many  of our  competitors  have  greater  financial  and
management  resources than we have. We believe the  geographic  diversity of our
investments, the experience and abilities of our management, the high quality of
our assets and the  financial  strength of many of our  tenants  affords us some
competitive  advantages  which have and will allow us to  operate  our  business
successfully despite the competitive nature of this business.

                        FEDERAL INCOME TAX CONSIDERATIONS

         The following  summary of federal income tax and ERISA  consequences is
based on  existing  law,  and is  limited  to  investors  who own our  shares as
investment  assets  rather than as inventory  or as property  used in a trade or
business.  The summary does not discuss the  particular  tax  consequences  that
might be relevant  to you if you are subject to special  rules under the federal
income tax law, for example if you are:

     o    a bank, life insurance company, regulated investment company, or other
          financial institution,

     o    a broker or dealer in securities or foreign currency,

     o    a person who has a functional currency other than the U.S. dollar,

     o    a person who  acquires our shares in  connection  with  employment  or
          other performance of services,

     o    a person subject to alternative minimum tax,

     o    a  person  who  owns  our  shares  as  part  of  a  straddle,  hedging
          transaction, constructive sale transaction, or conversion transaction,
          or

     o    except  as  specifically   described  in  the  following   summary,  a
          tax-exempt entity or a foreign person.

The  sections of the Internal  Revenue  Code that govern the federal  income tax
qualification  and treatment of a REIT and its  shareholders  are complex.  This
presentation  is a summary  of  applicable  Internal  Revenue  Code  provisions,
related rules and regulations and administrative  and judicial  interpretations,
all of which are subject to change,  possibly with  retroactive  effect.  Future
legislative,  judicial, or administrative  actions or decisions could affect the
accuracy of statements  made in this  summary.  We have not sought a ruling from
the IRS with  respect to any matter  described  in this  summary,  and we cannot
assure you that the IRS or a court will agree with the  statements  made in this
summary.  In addition,  the following  summary is not exhaustive of all possible
tax  consequences,  and does not discuss  any estate,  gift,  state,  local,  or
foreign tax consequences. For all these reasons, we urge you and any prospective
acquiror of our shares to consult  with a tax advisor  about the federal  income
tax and other tax consequences of the acquisition,  ownership and disposition of
our shares.

                                       4
<PAGE>

         Federal income tax  consequences may differ depending on whether or not
you are a "U.S.  shareholder." For purposes of this summary, a U.S.  shareholder
for federal income tax purposes is:

     o    a  citizen  or  resident  of the  United  States,  including  an alien
          individual who is a lawful permanent  resident of the United States or
          meets the substantial presence residency test under the federal income
          tax laws,

     o    a corporation, partnership or other entity treated as a corporation or
          partnership  for  federal  income  tax  purposes,  that is  created or
          organized in or under the laws of the United States, any state thereof
          or the District of  Columbia,  unless  otherwise  provided by Treasury
          regulations,

     o    an estate the income of which is  subject to federal  income  taxation
          regardless of its source, or

     o    a trust  if a court  within  the  United  States  is able to  exercise
          primary  supervision over the  administration  of the trust and one or
          more  United  States   persons  have  the  authority  to  control  all
          substantial decisions of the trust, or electing trusts in existence on
          August 20, 1996 to the extent provided in Treasury regulations,

whose  status as a U.S.  shareholder  is not  overridden  by an  applicable  tax
treaty. Conversely, a "non-U.S. shareholder" is a beneficial owner of our shares
who is not a U.S. shareholder.

Taxation as a REIT

         We have elected to be taxed as a REIT under Sections 856 through 860 of
the Internal Revenue Code,  commencing with our taxable year ending December 31,
1987. Our REIT election,  assuming continuing compliance with the federal income
tax  qualification  tests summarized  below,  continues in effect for subsequent
taxable  years.  Although  no  assurance  can be given,  we believe  that we are
organized,  have  operated,  and will  continue  to  operate  in a  manner  that
qualifies us to be taxed under the Internal Revenue Code as a REIT.

         As a REIT,  we generally  will not be subject to federal  income tax on
our net income  distributed as dividends to our  shareholders.  Distributions to
our  shareholders  generally  will be includable in their income as dividends to
the extent of our current or  accumulated  earnings  and  profits.  A portion of
these dividends may be treated as capital gain dividends, as explained below. No
portion of any dividends will be eligible for the dividends  received  deduction
for corporate  shareholders.  Distributions  in excess of current or accumulated
earnings and profits  generally  will be treated for federal income tax purposes
as a return of capital to the extent of a recipient  shareholder's  basis in our
shares,  and will reduce this basis.  Our current or  accumulated  earnings  and
profits will generally be allocated  first to  distributions  on our outstanding
preferred shares, if any, and thereafter to distributions on our common shares.

         Our  counsel,  Sullivan & Worcester  LLP,  has opined that we have been
organized and have  qualified as a REIT under the Internal  Revenue Code for our
1987 through 1999 taxable years,  and that our current  investments  and plan of
operation will enable us to meet the requirements for qualification and taxation
as a REIT under the Internal Revenue Code. Our actual qualification and taxation
as a REIT will depend upon our  ability to meet the various  REIT  qualification
tests imposed under the Internal  Revenue Code and  summarized  below.  While we
believe  that  we  will  operate  in  a  manner  to  satisfy  the  various  REIT
qualification tests, our counsel has not reviewed and will not review compliance
with these tests on a continuing  basis.  If we fail to qualify as a REIT in any
year,  we will be subject to federal  income  taxation  as if we were a domestic
corporation,  and our shareholders  will be taxed like  shareholders of ordinary
corporations. In this event, we could be subject to significant tax liabilities,
and the amount of cash available for  distribution  to our  shareholders  may be
reduced or eliminated.

         If we qualify for  taxation as a REIT and meet the annual  distribution
tests  described  below,  we generally will not be subject to federal  corporate
income taxes on the amount distributed.  However, even if we qualify for federal
income  taxation as a REIT,  we may be subject to federal  tax in the  following
circumstances:

     o    We will be taxed at regular corporate rates on any undistributed "real
          estate  investment trust taxable income,"  including our undistributed
          net capital gains.

     o    If our alternative  minimum taxable income exceeds our taxable income,
          we may be  subject to the  corporate  alternative  minimum  tax on our
          items of tax preference.

     o    If  we  have  net  income  from  the  sale  or  other  disposition  of
          "foreclosure property" that is held primarily for sale to customers in
          the  ordinary  course of business or other  nonqualifying  income from
          foreclosure  property,  we will be  subject  to tax on this net income
          from foreclosure property at the highest regular corporate rate, which
          is currently 35%.

                                       5
<PAGE>

     o    If we have net income from prohibited transactions, including sales or
          other dispositions of inventory or property held primarily for sale to
          customers in the ordinary  course of business  other than  foreclosure
          property, we will be subject to tax on this income at a 100% rate.

     o    If we fail to  satisfy  the 75%  gross  income  test or the 95%  gross
          income  test   discussed   below,   but   nonetheless   maintain   our
          qualification  as a REIT,  we will be subject to tax at a 100% rate on
          the  greater  of the  amount by which we fail the 75% or the 95% test,
          multiplied by a fraction intended to reflect our profitability.

     o    If we fail to distribute for any calendar year at least the sum of 85%
          of our REIT  ordinary  income for that year,  95% of our REIT  capital
          gain net income for that year,  and any  undistributed  taxable income
          from  prior  periods,  we will be  subject  to a 4% excise  tax on the
          excess  of  the  required   distribution  over  the  amounts  actually
          distributed.

     o    If we acquire an asset from a corporation  in a  transaction  in which
          our basis in the asset is  determined by reference to the basis of the
          asset in the hands of a present  or  former C  corporation,  and if we
          subsequently  recognize  gain on the  disposition of this asset during
          the ten-year period beginning on the date on which the asset ceased to
          be owned  by the C  corporation,  then we will pay tax at the  highest
          regular  corporate tax rate,  which is currently 35%, on the lesser of
          the  excess  of  the  fair  market  value  of  the  asset  over  the C
          corporation's  basis in the asset on the date the  asset  ceased to be
          owned by the C corporation, or the gain recognized in the disposition.

         If we invest in properties in foreign countries, our profits from those
investments  will  generally  be subject  to tax in the  countries  where  those
properties  are located.  The nature and amount of this  taxation will depend on
the laws of the countries where the properties are located.  If we operate as we
currently intend, then we will distribute our taxable income to our shareholders
and we will not pay federal income tax, and thus we generally cannot recover the
cost of foreign taxes imposed on our foreign investments by claiming foreign tax
credits  against our federal income tax liability.  Also, we cannot pass through
to our shareholders any foreign tax credits.

         If we fail to qualify  for  federal  income  taxation  as a REIT in any
taxable  year,  then we will be subject to federal  tax in the same manner as an
ordinary corporation.  Distributions to our shareholders in any year in which we
fail to qualify as a REIT will not be deductible,  nor will these  distributions
be  required  to be made.  In that  event,  to the  extent  of our  current  and
accumulated  earnings and profits, all distributions to our shareholders will be
taxable as ordinary  dividend income and, subject to limitations in the Internal
Revenue  Code,  will  be  eligible  for the  dividends  received  deduction  for
corporate recipients. Also in that event, we will generally be disqualified from
federal  income  taxation  as a  REIT  for  the  four  taxable  years  following
disqualification.  Failure to qualify for federal income  taxation as a REIT for
even  one  year  could  result  in our  incurring  substantial  indebtedness  or
liquidating   substantial   investments   in   order   to  pay   the   resulting
corporate-level taxes.

REIT Qualification Requirements

         General  Requirements.  Section  856(a) of the  Internal  Revenue  Code
defines a REIT as a corporation, trust or association:

         (1) that is managed by one or more trustees or directors;

         (2) the  beneficial  ownership of which is  evidenced  by  transferable
shares or by transferable certificates of beneficial interest;

         (3) that would be  taxable,  but for  Sections  856  through 859 of the
Internal Revenue Code, as an ordinary domestic corporation;

         (4) that is not a financial institution or an insurance company subject
to special provisions of the Internal Revenue Code;

         (5) the beneficial ownership of which is held by 100 or more persons;

         (6) that is not "closely  held" as defined  under the personal  holding
company stock ownership test, as described below; and

         (7) that meets other tests regarding income,  assets and distributions,
all as described below.

                                       6
<PAGE>

Section 856(b) of the Internal Revenue Code provides that conditions (1) to (4),
inclusive,  must be met during the entire  taxable year and that  condition  (5)
must be met during at least 335 days of a taxable year of 12 months, or during a
pro rata part of a taxable year of less than 12 months. Section 856(h)(2) of the
Internal  Revenue Code provides that  conditions (5) and (6) need not be met for
our first taxable year as a REIT. We believe that we have  satisfied  conditions
(1) to (6), inclusive,  during each of the requisite periods ending on or before
December 31, 1999,  and that we will  continue to satisfy  those  conditions  in
future taxable years. There can, however, be no assurance in this regard.

         By reason of condition (6) above, we will fail to qualify as a REIT for
a taxable  year if at any time during the last half of the year more than 50% in
value of our outstanding shares is owned directly or indirectly by five or fewer
individuals.  To help  comply  with  condition  (6),  our  declaration  of trust
contains  provisions  restricting  transfers of our shares.  In addition,  if we
comply with applicable  Treasury  regulations for  ascertaining the ownership of
our outstanding  shares and do not know, or by exercising  reasonable  diligence
would not have known,  that we failed  condition (6), then we will be treated as
satisfying  condition  (6).  Also,  our failure to comply with these  applicable
Treasury  regulations for ascertaining  ownership of our outstanding  shares may
result  in  a  penalty  of  $25,000,  or  $50,000  for  intentional  violations.
Accordingly, we intend to comply with these Treasury regulations, and to request
annually  from  record  holders  of   significant   percentages  of  our  shares
information  regarding the  ownership of our shares.  Under our  declaration  of
trust,   our  shareholders  are  required  to  respond  to  these  requests  for
information.

         For purposes of condition (6) above, shares in a REIT held by a pension
trust are  treated as held  directly  by the pension  trust's  beneficiaries  in
proportion to their actuarial interests in the pension trust. Consequently, five
or fewer  pension  trusts could own more than 50% of the  interests in an entity
without  jeopardizing  that entity's federal income tax qualification as a REIT.
However,  as discussed  below, if a REIT is a "pension-held  REIT," each pension
trust owning more than 10% of the REIT's shares by value generally will be taxed
on a portion of the dividends received from the REIT, based on the ratio of:

         (1) the REIT's gross income for the year that would be unrelated  trade
or business income if the REIT were a qualified pension trust, to

         (2) the REIT's total gross income for the year.

         Our Wholly-Owned Subsidiaries and Our Investments through Partnerships.
Section 856(i) of the Internal  Revenue Code provides that any corporation  100%
of whose stock is held by a REIT is a qualified REIT subsidiary and shall not be
treated as a separate corporation.  The assets, liabilities and items of income,
deduction and credit of a qualified  REIT  subsidiary are treated as the REIT's.
We believe that each of our direct and indirect  wholly-owned  subsidiaries will
either be a qualified  REIT  subsidiary  within the meaning of Section 856(i) of
the Internal Revenue Code, or a noncorporate  entity that for federal income tax
purposes  is not treated as separate  from its owner  under  regulations  issued
under  Section  7701 of the Internal  Revenue  Code.  Thus,  in applying all the
federal income tax REIT  qualification  requirements  described in this summary,
all assets,  liabilities and items of income, deduction and credit of our direct
and indirect wholly-owned subsidiaries are treated as ours.

         We have  invested  and may invest in real  estate  through  one or more
limited or general  partnerships or limited liability companies that are treated
as partnerships for federal income tax purposes. In the case of a REIT that is a
partner in a partnership,  regulations  under the Internal  Revenue Code provide
that, for purposes of the REIT qualification  requirements  regarding income and
assets discussed below, the REIT is deemed to own its proportionate share of the
assets of the  partnership  corresponding  to the REIT's  proportionate  capital
interest  in the  partnership  and is deemed to be entitled to the income of the
partnership  attributable to this  proportionate  share. In addition,  for these
purposes,  the  character  of the  assets  and gross  income of the  partnership
generally retain the same character in the hands of the REIT.  Accordingly,  our
proportionate  share of the  assets,  liabilities,  and  items of income of each
partnership  in which we are a partner is treated  as ours for  purposes  of the
income tests and asset tests discussed  below. In contrast,  for purposes of the
distribution requirement discussed below, we must take into account as a partner
our  distributive  share of the  partnership's  income as  determined  under the
general  federal  income tax rules  governing  partners and  partnerships  under
Sections 701 through 777 of the Internal Revenue Code.

         Income Tests. There are two gross income requirements for qualification
as a REIT under the Internal Revenue Code:

     o    At least 75% of our gross income, excluding gross income from sales or
          other  dispositions  of  property  held  primarily  for sale,  must be
          derived from investments  relating to real property,  including "rents
          from real  property"  as defined  under  Section  856 of the  Internal
          Revenue Code,  mortgages on real  property,  or shares in other REITs.
          When we receive new capital in exchange  for our shares or in a public
          offering of five-year or longer debt instruments,  income attributable
          to the  temporary  investment  of this new  capital in stock or a debt

                                       7
<PAGE>

          instrument,  if received or accrued  within one year of our receipt of
          the new capital,  is generally  also  qualifying  income under the 75%
          test.

     o    At least 95% of our gross income, excluding gross income from sales or
          other  dispositions  of  property  held  primarily  for sale,  must be
          derived  from a  combination  of items of real  property  income  that
          satisfy the 75% test described above,  dividends,  interest,  payments
          under  interest  rate  swap  or  cap  agreements,   options,   futures
          contracts,  forward rate agreements, or similar financial instruments,
          and gains from the sale or disposition of stock,  securities,  or real
          property.

For  purposes  of  these  two  requirements,   income  derived  from  a  "shared
appreciation  provision"  in a  mortgage  loan  is  generally  treated  as  gain
recognized on the sale of the property to which it relates. Although we will use
our best efforts to ensure that the income  generated by our investments will be
of a type which satisfies both the 75% and 95% gross income tests,  there can be
no assurance in this regard.

         In order to qualify as "rents from real property"  under Section 856 of
the Internal Revenue Code, several requirements must be met:

     o    The amount of rent received  generally must not be based on the income
          or profits of any person, but may be based on receipts or sales.

     o    Rents do not  qualify if the REIT owns 10% or more by vote or value of
          the tenant,  whether  directly  or after  application  of  attribution
          rules.  While we intend  not to lease  property  to any party if rents
          from that  property  would not  qualify as rents  from real  property,
          application  of the 10%  ownership  rule  is  dependent  upon  complex
          attribution  rules and  circumstances  that may be beyond our control.
          For example,  an unaffiliated  third party's ownership  directly or by
          attribution  of 10% or more by value of our shares,  as well as 10% or
          more by vote or value of the stock of one of our lessees, would result
          in that lessee's rents not qualifying as rents from real property. Our
          declaration of trust  disallows  transfers or purported  acquisitions,
          directly  or by  attribution,  of our  shares  that  could  result  in
          disqualification as a REIT under the Internal Revenue Code and permits
          our  trustees  to  repurchase  the shares to the extent  necessary  to
          maintain  our  status  as a REIT  under  the  Internal  Revenue  Code.
          Nevertheless,  there can be no assurance that these  provisions in our
          declaration  of trust will be  effective  to prevent REIT status under
          the Internal Revenue Code from being  jeopardized under the 10% lessee
          affiliate rule. Furthermore, there can be no assurance that we will be
          able  to  monitor  and  enforce  these  restrictions,   nor  will  our
          shareholders necessarily be aware of ownership of shares attributed to
          them under the Internal Revenue Code's attribution rules.

     o    In order  for rents to  qualify,  we  generally  must not  manage  the
          property or furnish or render services to the tenants of the property,
          except  through  an  independent  contractor  from  whom we  derive no
          income.  There  is an  exception  to this  rule  permitting  a REIT to
          perform  customary  tenant  services  of the sort  which a  tax-exempt
          organization  could  perform  without  being  considered in receipt of
          "unrelated business taxable income" as defined in Section 512(b)(3) of
          the  Internal  Revenue  Code.  In  addition,  a de  minimis  amount of
          noncustomary  services will not disqualify  income as "rents from real
          property" so long as the value of the impermissible  services does not
          exceed 1% of the gross income from the property.

     o    If rent  attributable to personal property leased in connection with a
          lease of real property is 15% or less of the total rent received under
          the  lease,  then the rent  attributable  to  personal  property  will
          qualify  as  rents  from  real  property;  if this  15%  threshold  is
          exceeded,  the rent  attributable  to  personal  property  will not so
          qualify.  The  portion of rental  income  treated as  attributable  to
          personal  property  is  determined  according  to the ratio of the tax
          basis of the personal  property to the total tax basis of the real and
          personal  property which is rented.  For taxable years after 2000, the
          ratio will be  determined  by reference to fair market  values  rather
          than tax bases.

We  believe  that all or  substantially  all our rents have  qualified  and will
qualify as rents from real  property for purposes of Section 856 of the Internal
Revenue Code.

         In order to qualify as mortgage  interest on real property for purposes
of the 75% test,  interest  must  derive  from a mortgage  loan  secured by real
property with a fair market value,  at the time the loan is made, at least equal
to the amount of the loan.  If the amount of the loan  exceeds  the fair  market
value of the real  property,  the  interest  will be  treated as  interest  on a
mortgage loan in a ratio equal to the ratio of the fair market value of the real
property to the total amount of the mortgage loan.

         Any gain we realize on the sale of property  held as inventory or other
property held primarily for sale to customers in the ordinary course of business
will be treated as income  from a  prohibited  transaction  that is subject to a
penalty tax at a 100% rate. This prohibited  transaction income also may have an
adverse  effect upon our ability to

                                       8
<PAGE>

satisfy the 75% and 95% gross income tests for federal income tax  qualification
as a REIT.  We cannot  provide  assurances  as to  whether  or not the IRS might
successfully  assert that one or more of our dispositions is subject to the 100%
penalty tax. However,  we believe that dispositions of assets that we might make
will not be subject to the 100% penalty tax, because we intend to:

     o    own  our  assets  for  investment  with a  view  to  long-term  income
          production and capital appreciation;

     o    engage  in the  business  of  developing,  owning  and  operating  our
          existing  properties and acquiring,  developing,  owning and operating
          new properties; and

     o    make  occasional  dispositions  of  our  assets  consistent  with  our
          long-term investment objectives.

         If we fail to satisfy one or both of the 75% or 95% gross  income tests
for any taxable year, we may nevertheless qualify as a REIT for that year if:

     o    our failure to meet the test was  due to reasonable  cause and not due
          to willful neglect;

     o    we report the nature and amount of each item of our income included in
          the 75% or 95% gross  income tests for that taxable year on a schedule
          attached to our tax return; and

     o    any  incorrect  information  on the schedule was not due to fraud with
          intent to evade tax.

It is impossible to state whether in all  circumstances  we would be entitled to
the benefit of this relief  provision  for the 75% and 95% gross  income  tests.
Even if this relief  provision did apply, a special tax equal to 100% is imposed
upon the  greater of the amount by which we failed the 75% test or the 95% test,
multiplied by a fraction intended to reflect our profitability.

         Asset Tests. At the close of each quarter of each taxable year, we must
also satisfy three percentage tests relating to the nature of our assets:

     o    At least 75% of our total assets must  consist of real estate  assets,
          cash and cash items, shares in other REITs, government securities, and
          stock or debt instruments  purchased with proceeds of a stock offering
          or an  offering  of our debt with a term of at least five  years,  but
          only  for the  one-year  period  commencing  with our  receipt  of the
          offering proceeds.

     o    Not more than 25% of our total assets may be represented by securities
          other than those  securities that count favorably toward the preceding
          75% asset test.

     o    Of the  investments  included in the  preceding  25% asset class,  the
          value of any one issuer's  securities that we own may not exceed 5% of
          the value of our total assets, and we may not own more than 10% of any
          one non-REIT issuer's outstanding voting securities. For taxable years
          after  2000,  we may not own more than 10% of the vote or value of any
          one non-REIT issuer's  outstanding  securities,  unless that issuer is
          our taxable  REIT  subsidiary  or the  securities  are  straight  debt
          securities.

When a failure to satisfy the above asset tests results from an  acquisition  of
securities  or other  property  during a quarter,  the  failure  can be cured by
disposition of sufficient nonqualifying assets within 30 days after the close of
that  quarter.  We  intend to  maintain  records  of the value of our  assets to
document our compliance with the above three asset tests, and to take actions as
may be required  to cure any  failure to satisfy the tests  within 30 days after
the close of any quarter.

Our  Investment  in  Senior  Housing  Properties  Trust.  We  continue  to own a
substantial  minority of Senior Housing  Properties Trust shares,  and we expect
Senior Housing  Properties Trust to qualify as a REIT under the Internal Revenue
Code.  For  so  long  as it so  qualifies,  our  investment  in  Senior  Housing
Properties  Trust will  count  favorably  toward  the REIT  asset  tests and the
dividends  we  receive  from  Senior  Housing  Properties  Trust  will  count as
qualifying income under the REIT gross income tests.

         Annual Distribution Requirements. In order to qualify for taxation as a
REIT  under  the  Internal   Revenue  Code,  we  are  required  to  make  annual
distributions other than capital gain dividends to our shareholders in an amount
at least equal to the excess of:

         (A)  the  sum of  95% of our  "real  estate  investment  trust  taxable
income," as defined in Section 857 of the  Internal  Revenue  Code,  computed by
excluding any net capital gain and before taking into account any dividends paid

                                       9
<PAGE>

deduction  for which we are  eligible,  and 95% of our net income  after tax, if
any, from property received in foreclosure, over

         (B) the sum of our  qualifying  noncash  income,  e.g.,  imputed rental
income or income from transactions inadvertently failing to qualify as like-kind
exchanges.

For our taxable years after 2000, the preceding 95%  percentages  are reduced to
90%. The distributions must be paid in the taxable year to which they relate, or
in the following  taxable year if declared  before we timely file our tax return
for the  earlier  taxable  year  and if  paid on or  before  the  first  regular
distribution  payment  after that  declaration.  Dividends  declared in October,
November,  or December and paid during the following  January will be treated as
having been both paid and received on December 31 of the prior  taxable  year. A
distribution  which is not pro rata within a class of our  beneficial  interests
entitled  to a  distribution,  or which is not  consistent  with the  rights  to
distributions  among our  classes of  beneficial  interests,  is a  preferential
distribution  that  is  not  taken  into   consideration  for  purposes  of  the
distribution  requirements,  and  accordingly  the  payment  of  a  preferential
distribution  could  affect our ability to meet the  distribution  requirements.
Taking  into  account  our   distribution   policies,   including  the  dividend
reinvestment  plan  we have  adopted,  we  expect  that we  will  not  make  any
preferential  distributions.  The distribution requirements may be waived by the
IRS if a REIT establishes that it failed to meet them by reason of distributions
previously made to meet the  requirements of the 4% excise tax discussed  below.
To the extent that we do not  distribute  all of our net capital gain and all of
our real estate investment trust taxable income, as adjusted, we will be subject
to tax on undistributed amounts.

         In  addition,  we will be  subject  to a 4% excise tax to the extent we
fail within a calendar year to make required  distributions  to our shareholders
of 85% of our  ordinary  income and 95% of our capital  gain net income plus the
excess,  if any, of the  "grossed up required  distribution"  for the  preceding
calendar year over the amount treated as distributed for that preceding calendar
year.  For this  purpose,  the term "grossed up required  distribution"  for any
calendar  year is the sum of our taxable  income for the  calendar  year without
regard to the deduction  for  dividends  paid and all amounts from earlier years
that are not treated as having been distributed under the provision.

         If we do not have  enough cash or other  liquid  assets to meet the 95%
distribution  requirements,  we may find it necessary to arrange for new debt or
equity financing to provide funds for required  distributions,  or else our REIT
status for federal income tax purposes could be  jeopardized.  We can provide no
assurance  that  financing  would be available  for these  purposes on favorable
terms.

         If we fail to distribute  sufficient  dividends for any year, we may be
able to rectify this failure by paying "deficiency dividends" to shareholders in
a later year.  These  deficiency  dividends may be included in our deduction for
dividends  paid for the earlier  year,  but an interest  charge would be imposed
upon us for the delay in  distribution.  Although  we may be able to avoid being
taxed on amounts distributed as deficiency dividends,  we will remain liable for
the 4% excise tax discussed above.

         Recent Federal Taxation  Changes.  The Tax Relief Extension Act of 1999
was enacted late in 1999 and is  effective  for taxable  years after 2000.  This
legislation  contained  several  tax  provisions  regarding  REITs,  including a
reduction  of the annual  distribution  requirement  for real estate  investment
trust taxable income from 95% to 90%, as mentioned  above.  The Act also changed
the 10% voting  securities  test under  current law to a 10% vote or value test.
Thus,  subject to exceptions,  a REIT will no longer be allowed to own more that
10% by vote or value of the outstanding  securities of any issuer,  other than a
qualified REIT subsidiary or another REIT.  Another  exception to this new test,
which is also an exception to the 5% asset test under current law, allows a REIT
to own any or all of the  securities of an electing  "taxable REIT  subsidiary,"
provided that no more than 20% of the REIT's assets is  represented by the stock
or  securities  of taxable  REIT  subsidiaries.  A taxable REIT  subsidiary  can
perform noncustomary  services for tenants of a REIT without disqualifying rents
received  from the tenants for purposes of the REIT's gross income tests and can
also undertake third-party  management and development activities and activities
that are not related to real estate.  A taxable REIT subsidiary will be taxed as
a subchapter C corporation but will be subject to earnings stripping limitations
on the  deductibility of interest paid to the REIT. In addition,  a REIT will be
subject to a 100% excise tax on certain excess amounts to ensure that:

     o    tenants who pay a taxable REIT  subsidiary for services are charged an
          arm's length amount by the taxable REIT subsidiary for these services;

     o    shared  expenses  of a  REIT  and  its  taxable  REIT  subsidiary  are
          allocated fairly between the two; and

     o    interest paid by a taxable REIT subsidiary to the REIT that owns it is
          commercially reasonable.


                                       10
<PAGE>

Depreciation and Federal Income Tax Treatment of Leases

         Our initial tax bases in our assets will  generally be our  acquisition
cost. We will generally  depreciate our real property on a  straight-line  basis
over 40 years  and our  personal  property  over 12  years.  These  depreciation
schedules may vary for properties that we acquire through  tax-free or carryover
basis acquisitions.

         We will be entitled to depreciation deductions from our facilities only
if we  are  treated  for  federal  income  tax  purposes  as  the  owner  of the
facilities.  This means that the leases of the facilities must be classified for
federal  income tax purposes as true  leases,  rather than as sales or financing
arrangements,  and we believe this to be the case. In the case of sale-leaseback
arrangements, the IRS could assert that we realized prepaid rental income in the
year of purchase to the extent that the value of a leased property,  at the time
of purchase,  exceeded the purchase  price for that  property.  While we believe
that the  value  of  leased  property  at the time of  purchase  did not  exceed
purchase  prices,  because  of the lack of clear  precedent  we  cannot  provide
assurances  as to whether the IRS might  successfully  assert the  existence  of
prepaid rental income in any of our sale-leaseback transactions.

         Additionally,  Section 467 of the Internal Revenue Code, which concerns
leases with increasing rents, may apply to those of our leases which provide for
rents that  increase  from one period to the next.  Section 467 of the  Internal
Revenue Code  provides that in the case of a so-called  "disqualified  leaseback
agreement" rental income must be accrued at a constant rate. Where constant rent
accrual is required,  we could recognize rental income from a lease in excess of
cash  rents  and,  as a result,  encounter  difficulty  in  meeting  the  annual
distribution  requirement.  Disqualified  leaseback agreements include leaseback
transactions  where a principal purpose for providing  increasing rent under the
agreement  is the  avoidance of federal  income tax.  Recently  issued  Treasury
regulations  provide  that  rents  will not be  treated  as  increasing  for tax
avoidance  purposes  where the  increases  are based upon a fixed  percentage of
lessee  receipts.  Therefore,  the additional rent provisions in our leases that
are based on a fixed  percentage of lessee receipts  generally  should not cause
the leases to be disqualified leaseback agreements under Section 467.

Taxation of U.S. Shareholders

         As long as we qualify as a REIT for  federal  income  tax  purposes,  a
distribution to our U.S. shareholders that we do not designate as a capital gain
dividend will be treated as an ordinary income dividend to the extent that it is
made out of current or accumulated earnings and profits.  Distributions made out
of our current or accumulated earnings and profits that we properly designate as
capital gain  dividends will be taxed as long-term  capital gains,  as discussed
below,  to the extent  they do not exceed  our actual net  capital  gain for the
taxable year. However, corporate shareholders may be required to treat up to 20%
of any  capital  gain  dividend  as  ordinary  income  under  Section 291 of the
Internal Revenue Code.

         In  addition,  we may elect to retain net capital gain income and treat
it as constructively distributed. In that case:

         (1) we will be taxed at regular  corporate  capital  gains tax rates on
retained amounts,

         (2) each U.S. shareholder will be taxed on its designated proportionate
share of our retained net capital  gains as though that amount were  distributed
and designated a capital gain dividend,

         (3) each U.S.  shareholder  will  receive a credit  for its  designated
proportionate share of the tax that we pay,

         (4) each U.S.  shareholder  will  increase  its  adjusted  basis in our
shares by the excess of the amount of its proportionate  share of these retained
net capital gains over its proportionate share of this tax that we pay, and

         (5)  both we and our  corporate  shareholders  will  make  commensurate
adjustments  in our  respective  earnings  and profits  for  federal  income tax
purposes.

If we elect to retain our net capital gains in this fashion,  we will notify our
U.S. shareholders of the relevant tax information within 60 days after the close
of the affected taxable year.

         For  noncorporate  U.S.  shareholders,   long-term  capital  gains  are
generally  taxed  at  maximum  rates of 20% or 25%,  depending  upon the type of
property  disposed of and the previously  claimed  depreciation  with respect to
this  property.  If for any taxable year we designate as capital gain  dividends
any portion of the  dividends  paid or made  available  for the year to our U.S.
shareholders,  including  our  retained  capital  gains  treated as capital gain
dividends,  then the portion of the capital gain  dividends so  designated  that
will be  allocated  to the  holders of a  particular  class of shares  will on a
percentage  basis equal the ratio of the amount of the total  dividends  paid or
made  available for the year

                                       11
<PAGE>
to the  holders  of that  class of shares to the  total  dividends  paid or made
available  for  the  year to  holders  of all  classes  of our  shares.  We will
similarly designate the portion of any capital gain dividend that is to be taxed
to noncorporate U.S. shareholders at the maximum rates of 20% or 25% so that the
designations will be proportional among all classes of our shares.

         Distributions in excess of current or accumulated  earnings and profits
will not be taxable to a U.S.  shareholder to the extent that they do not exceed
the shareholder's  adjusted basis in the shareholder's  shares,  but will reduce
the  shareholder's  basis in those  shares.  To the  extent  that  these  excess
distributions  exceed the adjusted basis of a U.S.  shareholder's  shares,  they
will be included in income as capital gain,  with long-term gain generally taxed
to noncorporate U.S.  shareholders at a maximum rate of 20%. No U.S. shareholder
may include on his federal income tax return any of our net operating  losses or
any of our capital losses.

         Dividends that we declare in October, November or December of a taxable
year to U.S.  shareholders of record on a date in those months will be deemed to
have been received by shareholders on December 31 of that taxable year, provided
we actually pay these dividends during the following  January.  Also, items that
are treated  differently for regular and alternative minimum tax purposes are to
be allocated  between a REIT and its  shareholders  under  Treasury  regulations
which are to be prescribed.  It is possible that these Treasury regulations will
require tax preference items to be allocated to our shareholders with respect to
any accelerated depreciation or other tax preference items that we claim.

         A U.S.  shareholder's  sale or  exchange  of our shares  will result in
recognition  of gain or loss in an amount  equal to the  difference  between the
amount  realized  and the  shareholder's  adjusted  basis in the shares  sold or
exchanged. This gain or loss will be capital gain or loss, and will be long-term
capital gain or loss if the  shareholder's  holding period in the shares exceeds
one year.  In addition,  any loss upon a sale or exchange of our shares held for
six months or less will generally be treated as a long-term  capital loss to the
extent of our long-term capital gain dividends during the holding period.

         Noncorporate  U.S.  shareholders  who  borrow  funds to  finance  their
acquisition  of our shares could be limited in the amount of deductions  allowed
for the interest paid on the indebtedness incurred.  Under Section 163(d) of the
Internal  Revenue  Code,  interest paid or accrued on  indebtedness  incurred or
continued  to  purchase  or carry  property  held for  investment  is  generally
deductible  only to the extent of the investor's net investment  income.  A U.S.
shareholder's  net  investment  income will  include  ordinary  income  dividend
distributions  received from us and, if an  appropriate  election is made by the
shareholder,  capital gain dividend  distributions  received  from us;  however,
distributions treated as a nontaxable return of the shareholder's basis will not
enter into the computation of net investment income.

Taxation of Tax-Exempt Shareholders

         In Revenue Ruling 66-106,  the IRS ruled that amounts  distributed by a
REIT to a tax-exempt  employees'  pension  trust did not  constitute  "unrelated
business  taxable  income,"  even  though  the REIT may have  financed  some its
activities  with   acquisition   indebtedness.   Although  revenue  rulings  are
interpretive  in nature and subject to  revocation or  modification  by the IRS,
based  upon  the  analysis  and  conclusion  of  Revenue   Ruling  66-106,   our
distributions made to shareholders that are tax-exempt pension plans, individual
retirement  accounts,   or  other  qualifying  tax-exempt  entities  should  not
constitute  unrelated  business  taxable  income,  unless  the  shareholder  has
financed its acquisition of our shares with  "acquisition  indebtedness"  within
the meaning of the Internal Revenue Code.

         Special rules apply to tax-exempt pension trusts,  including  so-called
401(k) plans but excluding individual  retirement accounts or government pension
plans,  that own more  than  10% by value of a  "pension-held  REIT" at any time
during a taxable  year.  The pension trust may be required to treat a percentage
of all  dividends  received  from  the  pension-held  REIT  during  the  year as
unrelated business taxable income. This percentage is equal to the ratio of:

         (1) the  pension-held  REIT's gross income  derived from the conduct of
unrelated trades or businesses,  determined as if the  pension-held  REIT were a
tax-exempt pension fund, less direct expenses related to that income, to

         (2) the pension-held REIT's gross income from all sources,  less direct
expenses related to that income,

except that this percentage shall be deemed to be zero unless it would otherwise
equal or exceed 5%. A REIT is a pension-held REIT if:

     o    the REIT is "predominantly held" by tax-exempt pension trusts, and

                                       12
<PAGE>

     o    the REIT would  otherwise fail to satisfy the "closely held" ownership
          requirement  discussed  above if the stock or beneficial  interests in
          the REIT held by  tax-exempt  pension  trusts  were  viewed as held by
          tax-exempt   pension   trusts   rather   than  by   their   respective
          beneficiaries.

A REIT is  predominantly  held by  tax-exempt  pension  trusts  if at least  one
tax-exempt  pension  trust  owns more than 25% by value of the  REIT's  stock or
beneficial  interests,  or if one or more tax-exempt pension trusts, each owning
more than 10% by value of the REIT's stock or beneficial  interests,  own in the
aggregate  more than 50% by value of the REIT's stock or  beneficial  interests.
Because of the  restrictions in our declaration of trust regarding the ownership
concentration  of our  shares,  we  believe  that we are not and  will  not be a
pension-held  REIT.  However,  because our shares are publicly traded, we cannot
completely control whether or not we are or will become a pension-held REIT.

Taxation of Non-U.S. Shareholders

         The rules  governing  the United  States  federal  income  taxation  of
non-U.S. shareholders are complex, and the following discussion is intended only
as a summary of these rules. If you are a non-U.S.  shareholder,  we urge you to
consult  with your own tax  advisor to  determine  the  impact of United  States
federal, state, local, and foreign tax laws, including any tax return filing and
other reporting requirements, with respect to your investment in our shares.

         In general,  a non-U.S.  shareholder  will be subject to regular United
States federal income tax in the same manner as a U.S.  shareholder with respect
to its investment in our shares if that investment is effectively connected with
the non-U.S.  shareholder's conduct of a trade or business in the United States.
In addition, a corporate non-U.S. shareholder that receives income that is or is
deemed  effectively  connected with a trade or business in the United States may
also be subject to the 30% branch  profits tax under Section 884 of the Internal
Revenue  Code,  which is payable in addition to regular  United  States  federal
corporate  income  tax.  The  balance of this  discussion  on the United  States
federal income taxation of non-U.S.  shareholders  addresses only those non-U.S.
shareholders  whose  investment in our shares is not effectively  connected with
the conduct of a trade or business in the United States.

         A distribution by us to a non-U.S. shareholder that is not attributable
to gain from the sale or exchange of a United States real property  interest and
that is not designated as a capital gain dividend will be treated as an ordinary
income  dividend  to the extent  that it is made out of  current or  accumulated
earnings and profits.  A distribution  of this type will generally be subject to
United  States  federal  income tax and  withholding  at the rate of 30%, or the
lower rate that may be specified by a tax treaty if the non-U.S. shareholder has
in the manner  prescribed by the IRS  demonstrated  its  entitlement to benefits
under a tax treaty.  Because we cannot  determine  our  current and  accumulated
earnings and profits until the end of the taxable year,  withholding at the rate
of 30% or  applicable  lower  treaty rate will be imposed on the gross amount of
any  distribution to a non-U.S.  shareholder that we make and do not designate a
capital gain dividend.  Notwithstanding  this  withholding on  distributions  in
excess of our current and accumulated earnings and profits,  these distributions
are a  nontaxable  return of capital  to the extent  that they do not exceed the
non-U.S.  shareholder's  adjusted basis in our shares, and the nontaxable return
of capital will reduce the adjusted  basis in these  shares.  To the extent that
distributions  in excess of current and accumulated  earnings and profits exceed
the non-U.S.  shareholder's adjusted basis in our shares, the distributions will
give rise to tax  liability  if the  non-U.S.  shareholder  would  otherwise  be
subject  to tax on any gain  from  the sale or  exchange  of  these  shares,  as
discussed  below.  A  non-U.S.  shareholder  may seek a  refund  from the IRS of
amounts  withheld  on  distributions  to  him  in  excess  of  our  current  and
accumulated earnings and profits.

         For any year in  which we  qualify  as a REIT,  distributions  that are
attributable  to gain from the sale or exchange of a United States real property
interest  are taxed to a non-U.S.  shareholder  as if these  distributions  were
gains  effectively  connected  with a trade or  business  in the  United  States
conducted by the non-U.S. shareholder.  Accordingly, a non-U.S. shareholder will
be taxed on these amounts at the normal capital gain rates  applicable to a U.S.
shareholder,  subject to any applicable alternative minimum tax and to a special
alternative  minimum  tax in the  case of  nonresident  alien  individuals;  the
non-U.S. shareholder will be required to file a United States federal income tax
return  reporting  these amounts,  even if applicable  withholding is imposed as
described  below;  and corporate  non-U.S.  shareholders  may owe the 30% branch
profits tax under  Section 884 of the Internal  Revenue Code in respect of these
amounts.  We will  be  required  to  withhold  from  distributions  to  non-U.S.
shareholders,  and  remit  to  the  IRS,  35%  of  the  maximum  amount  of  any
distribution  that could be designated as a capital gain dividend.  In addition,
for purposes of this  withholding  rule, if we designate prior  distributions as
capital gain dividends,  then subsequent  distributions  up to the amount of the
designated prior  distributions  will be treated as capital gain dividends.  The
amount of any tax  withheld is  creditable  against the  non-U.S.  shareholder's
United States federal  income tax  liability,  and any amount of tax withheld in
excess of that tax liability may be refunded  provided that an appropriate claim
for  refund is filed  with the IRS.  If for any  taxable  year we  designate  as
capital gain  dividends any portion of the dividends  paid or made available for
the year to our  shareholders,  including our retained  capital gains treated as
capital  gain  dividends,  then the portion of the  capital  gain  dividends  so
designated that will be allocated to the holders of a particular class of shares
will on a percentage  basis equal the ratio of the amount of the total dividends
paid or made  available  for the year to the

                                       13
<PAGE>

holders of that class of shares to the total  dividends  paid or made  available
for the year to holders of all classes of our shares.

         Tax   treaties   may  reduce  the   withholding   obligations   on  our
distributions.   Under  some  treaties,   however,  rates  below  30%  generally
applicable to ordinary income dividends from United States  corporations may not
apply to ordinary income dividends from a REIT. If the amount of tax withheld by
us  with  respect  to a  distribution  to a  non-U.S.  shareholder  exceeds  the
shareholder's  United States  federal  income tax liability  with respect to the
distribution,  the non-U.S. shareholder may file for a refund of the excess from
the IRS. In this regard,  note that the 35% withholding tax rate on capital gain
dividends  corresponds  to the maximum  income tax rate  applicable to corporate
non-U.S.  shareholders  but is  higher  than  the 20% and 25%  maximum  rates on
capital  gains  generally  applicable  to  noncorporate  non-U.S.  shareholders.
Generally  effective with respect to distributions paid after December 31, 2000,
new Treasury regulations alter the information  reporting and backup withholding
rules applicable to non-U.S. shareholders and provide presumptions under which a
non-U.S.  shareholder is subject to backup withholding and information reporting
until we or the applicable  withholding  agent receives  certification  from the
shareholder  of its  non-U.S.  shareholder  status.  In  some  instances,  these
certification  requirements  are more  burdensome  than those  applicable  under
current  Treasury  regulations.  These new  Treasury  regulations  also  provide
special  rules  to  determine   whether,   for  purposes  of   determining   the
applicability of a tax treaty, our distributions to a non-U.S.  shareholder that
is an  entity  should be  treated  as paid to the  entity or to those  owning an
interest in that  entity,  and whether the entity or its owners are  entitled to
benefits under the tax treaty. These new Treasury regulations encourage non-U.S.
shareholders and withholding agents to use the new IRS Forms W-8 series,  rather
than the  predecessor  IRS Forms W-8, 1001, and 4224, and require use of the IRS
Forms W-8 series for payments made after December 31, 2000.

         If our shares are not "United  States real property  interests"  within
the  meaning  of  Section  897  of  the  Internal   Revenue   Code,  a  non-U.S.
shareholder's  gain on sale of these  shares  generally  will not be  subject to
United  States  federal  income  taxation,   except  that  a  nonresident  alien
individual  who was present in the United States for 183 days or more during the
taxable  year will be  subject to a 30% tax on this  gain.  Our shares  will not
constitute  a United  States real  property  interest if we are a  "domestically
controlled REIT." A domestically controlled REIT is a REIT in which at all times
during the  preceding  five-year  period less than 50% in value of its shares is
held directly or indirectly by foreign persons.  We believe that we are and will
be a domestically controlled REIT and thus a non-U.S. shareholder's gain on sale
of our shares  will not be subject to United  States  federal  income  taxation.
However,  because our shares are  publicly  traded,  we can provide no assurance
that we will be a  domestically  controlled  REIT. If we are not a  domestically
controlled REIT, a non-U.S. shareholder's gain on sale of our shares will not be
subject to United States  federal  income  taxation as a sale of a United States
real  property  interest,  if that  class of shares is  "regularly  traded,"  as
defined by applicable Treasury regulations,  on an established securities market
like the New York Stock Exchange, and the non-U.S.  shareholder has at all times
during  the  preceding  five  years  owned 5% or less by value of that  class of
shares.  If the gain on the sale of our shares  were  subject  to United  States
federal income taxation,  the non-U.S.  shareholder will generally be subject to
the same  treatment  as a U.S.  shareholder  with  respect to its gain,  will be
required to file a United States federal income tax return  reporting that gain,
and in the case of corporate non-U.S.  shareholders might owe branch profits tax
under Section 884 of the Internal Revenue Code. A purchaser of our shares from a
non-U.S.  shareholder  will not be required to withhold on the purchase price if
the purchased shares are regularly traded on an established securities market or
if we are a domestically  controlled REIT. Otherwise,  a purchaser of our shares
from a non-U.S.  shareholder  may be required to  withhold  10% of the  purchase
price paid to the non-U.S.  shareholder  and to remit the withheld amount to the
IRS.

Backup Withholding and Information Reporting

         Information reporting and backup withholding may apply to distributions
or proceeds paid to our shareholders  under the  circumstances  discussed below.
Amounts  withheld under backup  withholding  are generally not an additional tax
and may be refunded or credited  against the REIT  shareholder's  federal income
tax liability.

         A U.S.  shareholder will be subject to backup withholding at a 31% rate
when it  receives  distributions  on our  shares  or  proceeds  upon  the  sale,
exchange, redemption,  retirement or other disposition of our shares, unless the
U.S. shareholder properly executes under penalties of perjury an IRS Form W-9 or
substantially similar form that:

     o    provides  the  U.S.  shareholder's  correct  taxpayer   identification
          number; and

     o    certifies that the U.S.  shareholder is exempt from backup withholding
          because it is a corporation or comes within  another exempt  category,
          it has not been  notified  by the IRS  that it is  subject  to  backup
          withholding,  or it has been  notified by the IRS that it is no longer
          subject to backup withholding.

                                       14
<PAGE>

If the U.S.  shareholder  does not provide its correct  taxpayer  identification
number on the IRS Form W-9 or  substantially  similar form, it may be subject to
penalties imposed by the IRS and the REIT or other applicable  withholding agent
may also have to withhold a portion of any capital  gain  distributions  paid to
it. Unless the U.S.  shareholder has established on a properly executed IRS Form
W-9 or  substantially  similar  form that it is a  corporation  or comes  within
another  exempt  category,  distributions  on our  shares  paid to it during the
calendar year, and the amount of tax withheld if any, will be reported to it and
to the IRS.

         Distributions  on our  shares to a  non-U.S.  shareholder  during  each
calendar year and the amount of tax withheld, if any, will generally be reported
to  the  non-U.S.  shareholder  and  to  the  IRS.  This  information  reporting
requirement applies regardless of whether the non-U.S. shareholder is subject to
withholding  on  distributions  on our shares or  whether  the  withholding  was
reduced or eliminated by an applicable tax treaty. Also, distributions paid to a
non-U.S. shareholder on our shares may be subject to backup withholding at a 31%
rate,  unless  the  non-U.S.   shareholder   properly   certifies  its  non-U.S.
shareholder  status  on an IRS Form  W-8 or  substantially  similar  form in the
manner  described  above.  Similarly,   information  reporting  and  31%  backup
withholding will not apply to proceeds a non-U.S.  shareholder receives upon the
sale,  exchange,  redemption,  retirement or other disposition of our shares, if
the non-U.S.  shareholder properly certifies its non-U.S.  shareholder status on
an IRS Form W-8 or  substantially  similar form. Even without having executed an
IRS Form W-8 or substantially  similar form,  however, in some cases information
reporting and 31% backup  withholding will not apply to proceeds that a non-U.S.
shareholder  receives upon the sale, exchange,  redemption,  retirement or other
disposition  of our shares if the non-U.S.  shareholder  receives those proceeds
through a broker's foreign office. As described above, new Treasury  regulations
alter the  information  reporting  and backup  withholding  rules  applicable to
non-U.S.  shareholders for payments made after December 31, 2000, and in general
these new Treasury  Regulations  replace IRS Forms W-8,  1001, and 4224 with the
new IRS Forms W-8 series.  For a non-U.S.  shareholder  whose income and gain on
our shares is  effectively  connected to the conduct of a United States trade or
business,  a slightly  different  rule may apply to proceeds  received  upon the
sale, exchange, redemption, retirement or other disposition of our shares. Until
the non-U.S. shareholder complies with the new Treasury regulations, information
reporting and 31% backup  withholding  may apply in the same manner as to a U.S.
shareholder,  and thus the non-U.S.  shareholder may have to execute an IRS Form
W-9 or substantially similar form to prevent the backup withholding.

Other Tax Consequences

         You should recognize that our and our shareholders'  federal income tax
treatment may be modified by legislative, judicial, or administrative actions at
any time,  which actions may be  retroactive  in effect.  The rules dealing with
federal income taxation are constantly under review by the Congress, the IRS and
the Treasury  Department,  and statutory  changes as well as promulgation of new
regulations,  revisions to existing regulations,  and revised interpretations of
established  concepts  occur  frequently.  No  prediction  can be made as to the
likelihood of passage of new tax legislation or other provisions either directly
or indirectly affecting us and our shareholders. Revisions in federal income tax
laws  and   interpretations  of  these  laws  could  adversely  affect  the  tax
consequences of an investment in our shares. We and our shareholders may also be
subject  to state or local  taxation  in various  state or local  jurisdictions,
including  those in which we or our  shareholders  transact  business or reside.
State and local tax consequences may not be comparable to the federal income tax
consequences discussed above.


                                       15
<PAGE>

           ERISA PLANS, KEOGH PLANS AND INDIVIDUAL RETIREMENT ACCOUNTS

General Fiduciary Obligations

         Fiduciaries of a pension, profit-sharing or other employee benefit plan
subject  to Title I of the  Employee  Retirement  Income  Security  Act of 1974,
ERISA, must consider whether:

     o    their   investment  in  our  shares   satisfies  the   diversification
          requirements of ERISA;

     o    the  investment  is prudent in light of  possible  limitations  on the
          marketability of our shares;

     o    they have  authority  to  acquire  our  shares  under  the  applicable
          governing instrument and Title I of ERISA; and

     o    the   investment  is  otherwise   consistent   with  their   fiduciary
          responsibilities.

         Trustees  and other  fiduciaries  of an ERISA  plan may incur  personal
liability  for any loss  suffered by the plan on account of a violation of their
fiduciary  responsibilities.  In addition, these fiduciaries may be subject to a
civil  penalty of up to 20% of any amount  recovered by the plan on account of a
violation.  Fiduciaries  of any IRA,  Roth IRA,  Keogh  Plan or other  qualified
retirement  plan not  subject  to Title I of ERISA,  referred  to as  "non-ERISA
plans,"  should  consider  that  a plan  may  only  make  investments  that  are
authorized  by the  appropriate  governing  instrument.  Fiduciary  shareholders
should  consult their own legal  advisors if they have any concern as to whether
the investment is consistent with the foregoing criteria.

Prohibited Transactions

         Fiduciaries of ERISA plans and persons  making the investment  decision
for an IRA or other  non-ERISA  plan  should  consider  the  application  of the
prohibited  transaction  provisions  of ERISA and the  Internal  Revenue Code in
making their investment decision.  Sales and other transactions between an ERISA
plan or a non-ERISA plan, and persons related to it are prohibited transactions.
The  particular  facts   concerning  the   sponsorship,   operations  and  other
investments  of an ERISA plan or non-ERISA  plan may cause a wide range of other
persons to be  treated as  disqualified  persons  or  parties in  interest  with
respect to it. A  prohibited  transaction,  in addition  to  imposing  potential
personal  liability  upon  fiduciaries  of ERISA  plans,  may also result in the
imposition  of an excise tax under the Internal  Revenue Code or a penalty under
ERISA upon the  disqualified  person or party in  interest  with  respect to the
plan.  If  the  disqualified  person  who  engages  in  the  transaction  is the
individual  on  behalf  of  whom  an  IRA  or  Roth  IRA  is  maintained  or his
beneficiary,  the IRA or Roth IRA may lose its tax-exempt  status and its assets
may  be  deemed  to  have  been  distributed  to  the  individual  in a  taxable
distribution on account of the prohibited transaction, but no excise tax will be
imposed.  Fiduciary  shareholders  should consult their own legal advisors as to
whether the ownership of our shares involves a prohibited transaction.

Special Fiduciary and Prohibited Transactions Consequences

         The Department of Labor, which has administrative  responsibility  over
ERISA plans as well as non-ERISA plans,  has issued a regulation  defining "plan
assets." The regulation  generally provides that when an ERISA or non-ERISA plan
acquires a security that is an equity interest in an entity and that security is
neither a "publicly  offered  security"  nor a security  issued by an investment
company registered under the Investment Company Act of 1940, the ERISA plan's or
non-ERISA  plan's  assets  include  both the equity  interest  and an  undivided
interest  in  each  of  the  underlying  assets  of  the  entity,  unless  it is
established  either  that the  entity is an  operating  company  or that  equity
participation in the entity by benefit plan investors is not significant.

         Each  class of our shares, that is our common  shares and any class of
preferred  shares that we may issue, must be analyzed  separately  to  ascertain
whether it is a publicly  offered  security.  The regulation  defines a publicly
offered security as a security that is "widely held," "freely  transferable" and
either part of a class of securities  registered  under the Securities  Exchange
Act of 1934,  or sold  under  an  effective  registration  statement  under  the
Securities  Act of 1933,  provided  the  securities  are  registered  under  the
Securities Exchange Act of 1934 within 120 days after the end of the fiscal year
of the issuer during which the offering  occurred.  All our  outstanding  shares
have been registered under the Securities Exchange Act of 1934.

         The regulation  provides that a security is "widely held" only if it is
part of a class of securities that is owned by 100 or more investors independent
of the  issuer  and of one  another.  However,  a  security  will not fail to be
"widely  held"  because  the number of  independent  investors  falls  below 100
subsequent  to the  initial  public  offering  as a result of events  beyond the
issuer's  control.  Our common  shares  have been  widely held and we expect our
common  shares to

                                       16
<PAGE>

continue  to be  widely  held.  We  expect  the same to be true of any  class of
preferred stock that we may issue, but we can give no assurance in that regard.

         The   regulation   provides   that   whether  a  security   is  "freely
transferable"  is a  factual  question  to be  determined  on the  basis  of all
relevant facts and circumstances.  The regulation further provides that, where a
security is part of an offering  in which the minimum  investment  is $10,000 or
less,  some   restrictions  on  transfer   ordinarily  will  not,  alone  or  in
combination, affect a finding that these securities are freely transferable. The
restrictions  on transfer  enumerated in the  regulation  as not affecting  that
finding include:

     o    any  restriction on or prohibition  against any transfer or assignment
          which would result in a termination or reclassification for federal or
          state tax purposes,  or would  otherwise  violate any state or federal
          law or court order;

     o    any  requirement  that advance  notice of a transfer or  assignment be
          given to the issuer and any requirement  that either the transferor or
          transferee,    or   both,   execute    documentation   setting   forth
          representations  as to compliance  with any  restrictions  on transfer
          which are among those  enumerated  in the  regulation as not affecting
          free  transferability,  including  those  described  in the  preceding
          clause of this sentence;

     o    any  administrative  procedure which establishes an effective date, or
          an  event  prior  to  which  a  transfer  or  assignment  will  not be
          effective; and

     o    any limitation or  restriction on transfer or assignment  which is not
          imposed by the issuer or a person acting on behalf of the issuer.

         We believe that the restrictions imposed under our declaration of trust
on the  transfer  of shares do not  result in the  failure  of our  shares to be
"freely  transferable."  Furthermore,  we believe that at present there exist no
other facts or circumstances  limiting the  transferability  of our shares which
are  not  included   among  those   enumerated  as  not  affecting   their  free
transferability  under the regulation,  and we do not expect or intend to impose
in the future, or to permit any person to impose on our behalf,  any limitations
or restrictions on transfer which would not be among the enumerated  permissible
limitations or restrictions.

         Assuming  that each class of our shares will be "widely  held" and that
no other facts and circumstances  exist which restrict  transferability of these
shares, we have received an opinion of our counsel Sullivan & Worcester LLP that
our  shares  will not  fail to be  "freely  transferable"  for  purposes  of the
regulation  due  to  the  restrictions  on  transfer  of the  shares  under  our
declaration  of trust and that under the  regulation  the  shares  are  publicly
offered  securities and our assets will not be deemed to be "plan assets" of any
ERISA plan or non-ERISA plan that invests in our shares.


                                       17
<PAGE>
Item 2.  Properties

         General.  At  December  31,  1999,   approximately  89%  of  our  total
investments  were in  office  buildings,  7% were in senior  housing  properties
through our equity  investment  in SNH and 4% were in hotels  through our equity
investment in HPT. We believe that the physical  plant of each of the properties
in which we have  invested  is  suitable  and  adequate  for our present and any
currently  proposed  uses. At December 31, 1999, we had real estate  investments
totaling $2.7 billion at cost in 201 properties  that were leased to or operated
by over 800 tenants,  plus equity  investments of  approximately  $201.8 million
(carrying value) and $109.3 million (carrying value) in approximately  49.3% and
7.1% of the common  shares of SNH and HPT,  respectively.  At December 31, 1999,
SNH and HPT had  investments  in 93  senior  housing  properties  and 210  hotel
properties,  respectively.  At December 31, 1999, 11 properties we owned with an
aggregate  cost of $99  million  were  secured by five  mortgage  notes  payable
aggregating $55.4 million.

         The following table summarizes some information about our properties as
of December 31, 1999. All dollar figures are in thousands.

<TABLE>
<CAPTION>
REAL ESTATE OWNED AT DECEMBER 31, 1999:

                                     Number of Investment    Investment
Location                                  Properties           Amount          Net Book Value               Rent (1)
- --------------------------------------------------------------------------------------------------------------------

<S>                                         <C>             <C>                    <C>                      <C>
Office Properties:
Alaska                                        1                 $1,003                   $946                   $453
Arizona                                       6                 51,729                 50,213                  6,607
California                                   18                254,734                239,086                 36,616
Colorado                                      4                 47,350                 46,178                  7,050
Connecticut                                   2                 14,365                 13,890                  2,380
Delaware                                      2                 58,916                 57,316                  7,661
District of Columbia                          5                208,490                197,402                 29,241
Florida                                       4                 11,618                 11,135                  1,654
Georgia                                       1                  2,987                  2,821                    471
Kansas                                        1                  5,977                  5,588                  1,691
Maryland                                      8                164,312                155,881                 23,180
Massachusetts                                31                185,065                172,941                 27,955
Minnesota                                    14                115,048                112,945                 18,771
Missouri                                      1                  7,776                  7,339                    886
New Hampshire                                 1                 22,158                 21,846                  2,485
New Jersey                                    4                 29,966                 28,949                  4,106
New Mexico                                    6                 30,210                 29,427                  5,276
New York                                     11                275,562                267,006                 43,480
Ohio                                          1                 15,279                 14,749                  2,222
Oklahoma                                      6                 46,298                 44,723                  4,395
Pennsylvania                                 26                602,698                580,229                 90,750
Rhode Island                                  1                  8,010                  7,529                    931
Tennessee                                     1                 22,376                 21,668                  3,141
Texas                                        30                369,603                359,256                 59,802
Virginia                                      6                 68,133                 65,801                 10,121
Washington                                    2                 21,431                 20,227                  2,519
West Virginia                                 1                  4,933                  4,657                    700
Wyoming                                       1                 10,317                  9,737                  1,305
                                      ------------------- ------------------ ------------------- -------------------
    Total Real Estate                       195             $2,656,344             $2,549,485               $395,849
                                      =================== ================== =================== ===================

<FN>
(1)  Amounts represent income from properties owned for the 12 months ended December 31, 1999, and annualized income
     from properties acquired during 1999.
</FN>
</TABLE>
                                                      18

<PAGE>

Item 3.  Legal Proceedings

         As  previously  disclosed,  in early  1995 we  commenced  an  action in
Florida state court to collect on a secured  indemnity  agreement  from a former
tenant and mortgagor,  together with certain related parties (collectively,  the
"Former  Tenant").  In May 1995  the  Former  Tenant  filed a  counterclaim  and
third-party  complaint  against  us and  others,  including  Messrs.  Martin and
Portnoy, HRPT Advisors,  Inc. and Sullivan & Worcester LLP, seeking, among other
things, to set aside the indemnity agreement and to recover substantial damages.
After a  Massachusetts  state court  ordered the  dispute to  arbitration  and a
Florida court stayed further proceedings pending arbitration,  the Former Tenant
brought a separate action against us in the United States District Court for the
District of Massachusetts and realleged many of the same allegations made in the
counterclaims and third-party  complaints previously brought by them in response
to our original  action,  and added  allegations of violations of Sections 10(b)
and  20(a) of the  Securities  Exchange  Act of 1934,  as  amended,  Rule  10b-5
promulgated thereunder and violations of 18 U.S.C. ss. 1962 (RICO). In September
1996, the United States District Court for the District of Massachusetts ordered
the case brought by the Former  Tenant  dismissed  and all disputes  between the
Former Tenant and us referred to arbitration. The arbitration is proceeding, and
although the amount of damages  claimed by the Former  Tenant is  material,  all
claims of the Former Tenant  against us were  dismissed in January 1999,  except
one claim for common law fraud. The arbitrators' ruling,  dismissing all but one
claim against us, both narrows substantially the scope of claims pending against
us and  diminishes  greatly the risk of the Former  Tenant being able to hold us
liable for (i) attorneys fees and costs,  or (ii) multiple  damages,  should the
Former Tenant  prevail on its sole  remaining  claim.  We continue to pursue our
indemnity claims in the arbitration.  As we have previously  disclosed,  certain
related  cases  have also been filed by  creditors  or  assignees  of the Former
Tenant.  The amounts of damages  claimed by the  creditors  or  assignees of the
Former  Tenant are  material.  We are  defending  the claims of the creditors or
assignees of the Former Tenant in these related  proceedings,  currently pending
in Massachusetts  Superior Court. The outcome of the arbitration and the related
pending claims and proceedings cannot be predicted.

         The   Declaration   of  Trust  provides  that  our  Trustees  shall  be
indemnified in certain  circumstances  by us in connection with claims asserted
against them by reason of their status, subject to various limitations contained
in the Declaration of Trust.  Were Messrs.  Martin and Portnoy to be held liable
in the proceedings  described above,  they may have a claim for  indemnification
from us.

Item 4.  Submission of Matters to a Vote of Security Holders

         No matters were submitted to a vote of  shareholders  during the fourth
quarter of the year covered by this Annual Report on Form 10-K.

                                     PART II

Item 5.  Market for Registrant's Common Stock and Related Shareholder Matters

         Our shares are traded on the New York Stock Exchange (symbol: HRP). The
following  table  sets  forth for the  periods  indicated  the high and low sale
prices  for our shares as  reported  in the New York  Stock  Exchange  Composite
Transactions  reports.  Share prices on or before October 13, 1999 have not been
restated to reflect the spin-off of SNH.

                                    High                      Low
                                    ----                      ---
1998
        First Quarter              $20 15/16                 $19 5/8
        Second Quarter              20 1/4                    17 7/8
        Third Quarter               18 13/16                  15 5/8
        Fourth Quarter              17 1/8                    14

1999
        First Quarter               15                        13
        Second Quarter              15 9/16                   13 5/16
        Third Quarter               15 1/8                    11 1/4
        Fourth Quarter              12 1/8                    7 7/16

         The closing price of our shares on the New York Stock Exchange on March
27, 2000 was $8.

                                       19
<PAGE>

         As of March 10, 2000, there were 5,575 holders of record of our shares,
and we estimate that as of that date there were in excess of 120,000  beneficial
owners of our shares.

         Distributions  declared  with  respect to each  period for the two most
recent  fiscal years are set forth in the  following  table.  Distributions  are
generally paid in the quarter following the quarter to which they relate.

                                    Distribution
                                    Per Share
1998
     First Quarter                      $0.38
     Second Quarter                      0.38
     Third Quarter                       0.38
     Fourth Quarter                      0.38

1999
     First Quarter                       0.38
     Second Quarter                      0.38
     Third Quarter                       0.32
     Fourth Quarter                      0.32

         All  distributions  declared  have been paid.  We intend to continue to
declare and pay future  distributions  on a quarterly  basis. In addition to the
distributions  shown above, a non-cash  distribution of $1.65 per share was made
on October 12, 1999 for the spin-off of SNH.

         In order to qualify for the beneficial tax treatment  accorded to REITs
by Sections 856 through 860 of the  Internal  Revenue  Code,  we are required to
make  distributions to shareholders  which annually are equal to at least 95% of
our taxable income.  All  distributions  made by us are at the discretion of the
Trustees and depend on our earnings,  our cash flow available for  distribution,
our financial condition and other factors that the Trustees deem relevant.

         In December 1999, we issued 500 shares  pursuant to our Incentive Share
Award Plan to an independent  trustee elected to the Board of Trustees to fill a
vacancy.  The shares were valued at $7.625 per share,  the closing  price of our
shares on the New York Stock  Exchange on December 16, 1999.  The grant was made
pursuant to the  exemption  from  registration  contained in Section 4(2) of the
Securities Act of 1933, as amended.

                                       20
<PAGE>

Item 6.  Selected Financial Data

         Set forth  below is selected  financial  data for the periods and dates
indicated. This data should be read in conjunction with, and is qualified in its
entirety by reference to, the consolidated financial statements and accompanying
notes included herein in Item 14 of this Annual Report on Form 10-K. Amounts are
in thousands, except per share information.
<TABLE>
<CAPTION>
Income Statement Data:                                               Year Ended December 31,
                                          ----------------------------------------------------------------------------
                                                 1999           1998           1997            1996            1995
                                          ----------------------------------------------------------------------------
<S>                                           <C>            <C>            <C>            <C>             <C>
Total revenues                                 $427,541       $356,554       $208,863       $120,183        $113,322
Income before gain on sale of
   properties and extraordinary item            105,555        146,656        112,204         77,164          61,760
Income before extraordinary item                113,862        146,656        115,102         77,164          64,236
Net income                                      113,862        144,516        114,000         73,254          64,236
Funds from operations  - basic (1)              224,816        211,715        146,312         99,106          84,638
Funds from operations - diluted (1)             240,975        227,904        162,738        103,253          84,638
Dividends declared (2)                          410,152        190,341        144,271         94,299          83,954

Weighted average shares outstanding             131,843        119,867         92,168         66,255          59,227

Per basic common share amounts:
   Income before gain on sale of
     properties and extraordinary item            $0.80          $1.22          $1.22          $1.16          $1.04
   Income before extraordinary item                0.86           1.22           1.25           1.16           1.08
   Net income                                      0.86           1.21           1.24           1.11           1.08
   Funds from operations - basic (1)               1.71           1.77           1.59           1.50           1.43
   Funds from operations - diluted (1)             1.68           1.74           1.57           1.49           1.43
   Dividends declared (2)                          3.05           1.52           1.46           1.42           1.38

<CAPTION>
Balance Sheet Data:                                                     At December 31,
                                          ----------------------------------------------------------------------------
                                                1999           1998           1997            1996            1995
                                          ----------------------------------------------------------------------------
<S>                                         <C>            <C>            <C>            <C>               <C>
Real estate properties, at cost              $2,656,344     $2,956,482     $1,969,023     $1,005,739        $778,211
Real estate mortgages and notes, net             10,373         69,228        104,288        150,205         141,307
Equity investments                              311,113        113,234        113,654        105,422         102,159
Total assets                                  2,953,308      3,064,057      2,135,963      1,229,522         999,677
Total indebtedness                            1,349,890      1,132,081        787,879        492,175         269,759
Total shareholders' equity                    1,522,467      1,827,793      1,266,260        708,048         685,592
<FN>
(1)  Funds From Operations ("FFO"),  as defined in the White Paper on Funds From Operations,  which was approved by
     the Board of  Governors  of NAREIT in March 1995,  means net income  (computed in  accordance  with  Generally
     Accepted  Accounting  Principles  ("GAAP")),  excluding gains or losses from debt  restructuring  and sales of
     properties, plus depreciation and amortization and after adjustments for unconsolidated partnerships and joint
     ventures.  Adjustments for unconsolidated  partnerships and joint ventures is calculated to reflect funds from
     operations on the same basis. As provided in the NAREIT guidance, items classified by GAAP as extraordinary or
     unusual,  along with significant  non-recurring events that materially distort the comparative  measurement of
     company  performance  over time,  are  disregarded  in the  calculation.  We consider FFO to be an appropriate
     measure  of  performance  for an equity  REIT,  along  with cash flow  from  operating  activities,  financing
     activities  and investing  activities,  because it provides  investors  with an indication of an equity REIT's
     ability to incur and service debt, make capital expenditures,  pay distributions and fund other cash needs. We
     compute FFO in accordance with the standards established by NAREIT which may not be comparable to FFO reported
     by other REITs that do not define the term in accordance with the current NAREIT  definition or that interpret
     the current NAREIT definition  differently.  FFO does not represent cash generated by operating  activities in
     accordance  with GAAP and should not be considered as an alternative  to net income,  determined in accordance
     with GAAP, as an indication of financial performance or the cash flow from operating activities, determined in
     accordance with GAAP, as a measure of liquidity.

(2)  Includes non-recurring dividend distribution of shares in SNH, a formerly 100% owned subsidiary of the Company
     which is now a separately  listed REIT on the New York Stock Exchange under the symbol "SNH." The regular cash
     dividends  declared with respect to 1999 were $184,665 or $1.40 per share.  The current  regular cash dividend
     rate is $0.32 per share per quarter.
</FN>
</TABLE>
                                                        21
<PAGE>

Item 7. Management's  Discussion and Analysis of Financial Condition and Results
of Operations

         The following information is provided in connection with, and should be
read in conjunction with, the consolidated  financial statements included herein
in Item 14 of this Annual Report on Form 10-K.

Results of Operations

Year Ended December 31, 1999 Compared to Year Ended December 31, 1998

         Total revenues for the year ended December 31, 1999 increased to $427.5
million from $356.6 million for the year ended December 31, 1998.  Revenues from
our office segment increased $102.5 million and revenues from our senior housing
segment  decreased  $32.5  million.  The  increase in  revenues  from our office
segment is due to our increased real estate investments in office buildings. The
decrease in revenues  from our senior  housing  segment is due  primarily to the
spin-off of our subsidiary,  Senior Housing  Properties Trust ("SNH")  discussed
below, and the sale of some senior housing properties.

         Rental income  increased by $75.3 million and interest and other income
decreased  by $4.4  million.  Rental  income  increased  because of real  estate
investments made in 1999 and 1998, offset by the spin-off of SNH and the sale of
some senior housing properties.  Interest and other income decreased as a result
of the spin-off and the repayment of many of our mortgage loan investments.

         Total  expenses  for the year ended  December  31,  1999,  increased to
$319.7  million  from  $219.8  million  for the year ended  December  31,  1998.
Included  in total  expenses  for  1999  are  unusual  and  non-recurring  items
aggregating  $23.7  million:  approximately  $16.7  million  represents  the SNH
spin-off  transaction  costs,  and $7 million  represents  the write-down to net
realizable value of the carrying value of two real estate mortgages  receivable.
Operating  expenses  increased  by $38.8  million  primarily  as a result of our
increased  investment in "gross leased" real estate assets during 1999 and 1998.
Interest  expense  increased  to $87.5  million for the year ended  December 31,
1999,  from $64.3  million for the year ended  December 31, 1998,  mainly due to
higher  borrowings   outstanding  during  1999  compared  to  1998.   Similarly,
depreciation and amortization and general and administrative  expenses increased
from 1998 to 1999 as a result of new real  estate  investments  during  1999 and
1998.

         Net income decreased to $113.9 million,  or $0.86 per basic and diluted
share for the 1999 period,  from $144.5 million,  or $1.21 per basic and diluted
share,  for the 1998 period.  The decrease in net income is due primarily to the
spin-off of SNH and the unusual and non-recurring  items discussed above, offset
by new real estate investments in 1999 and 1998. Also, our equity in earnings of
equity  investments  reflects a non-recurring loss recognized by SNH in December
1999, discussed below.

         On October 12, 1999,  we spun-off  50.7% of our 100% owned  subsidiary,
SNH, by  distributing  13.2 million common shares of SNH to our  shareholders of
record on October 8, 1999. SNH is a real estate investment trust with 26 million
common shares  outstanding  that invests  principally in income producing senior
housing real estate.  In connection with the spin-off,  we received $200 million
from SNH that was used to repay amounts  outstanding  under our  revolving  bank
credit facility.

         At December  31,  1999,  SNH had  investments  in 93  assisted  living,
congregate care and nursing home properties.  Since the spin-off, our investment
in SNH has been  accounted for using the equity  method.  Prior to the spin-off,
the  operating  results and  investments  of SNH were  included in the Company's
results of  operations  and total  assets.  At December 31, 1999,  we owned 12.8
million,  or 49.3%,  of the common shares of  beneficial  interest of SNH with a
carrying value of $201.8 million and a market value of $158.5 million.

         We agreed to pay all costs  relating to the  spin-off  of SNH.  Through
December 31, 1999,  these costs totaled $16.7  million,  which included costs of
distributing SNH shares to shareholders,  legal and accounting fees,  Securities
and Exchange  Commission  filing fees, New York Stock Exchange  listing fees and
the up-front costs of establishing SNH's bank credit facility.

                                       22
<PAGE>

Item 7. Management's  Discussion and Analysis of Financial Condition and Results
of Operations - continued

         Our  principal  business  goal is to  maximize  funds  from  operations
("FFO") rather than net income. Our Board of Trustees considers FFO, among other
factors,  when determining  distributions  to be paid to  shareholders.  FFO, as
defined in the White Paper on Funds From  Operations,  which was approved by the
Board of  Governors  of NAREIT in March  1995,  means net  income  (computed  in
accordance with Generally Accepted Accounting  Principles  ("GAAP")),  excluding
gains  or  losses  from  debt  restructuring  and  sales  of  properties,   plus
depreciation  and  amortization   and  after   adjustments  for   unconsolidated
partnerships and joint ventures. Adjustments for unconsolidated partnerships and
joint ventures is calculated to reflect funds from operations on the same basis.
As provided in the NAREIT guidance, items classified by GAAP as extraordinary or
unusual, along with significant non-recurring events that materially distort the
comparative measurement of company performance over time, are disregarded in the
calculation.  We consider FFO to be an appropriate measure of performance for an
equity  REIT,  along  with  cash  flow  from  operating  activities,   financing
activities  and  investing  activities,  because it provides  investors  with an
indication of an equity REIT's  ability to incur and service debt,  make capital
expenditures,  pay  distributions  and fund other cash needs.  We compute FFO in
accordance with the standards  established by NAREIT which may not be comparable
to FFO  reported by other REITs that do not define the term in  accordance  with
the current NAREIT  definition or that  interpret the current NAREIT  definition
differently.  FFO does not represent cash  generated by operating  activities in
accordance  with GAAP and  should not be  considered  as an  alternative  to net
income,  determined  in  accordance  with GAAP,  as an  indication  of financial
performance or the cash flow from operating activities, determined in accordance
with GAAP, as a measure of liquidity.

         Funds from operations for the year ended December 31, 1999, were $241.0
million,  or $1.68 per diluted share,  compared to $227.9 million,  or $1.74 per
diluted share,  in 1998. The increase is primarily the result of new investments
in 1999 and 1998,  offset by a loss of FFO  resulting  from the spin-off of SNH.
Extraordinary,   unusual  and  non-recurring   losses  excluded  from  the  1999
calculation  aggregated $23.7 million.  The decrease in FFO per diluted share is
due primarily to the issuance of  additional  shares in 1998 and the spin-off of
SNH in 1999.  Effective  January 1, 2000, based on revised NAREIT guidance,  FFO
will  include  both   recurring  and   non-recurring   results  of   operations.
Consequently,  under the new definition, 1999's unusual and non-recurring losses
would not have been excluded.

         Cash  distributions  declared for the years ended December 31, 1999 and
1998 were $184.7 million,  or $1.40 per share, and $190.3 million,  or $1.52 per
share, respectively.  In addition, shares of SNH were distributed on October 12,
1999,  to complete the spin-off  discussed  above.  Dividends  paid in the first
quarter of the year generally pertain to the prior year. Distributions in excess
of net income constitute return of capital.  For 1999, the return of capital was
39.8% of distributions.

         Cash flows  provided by (used for)  operating,  investing and financing
activities  were  $223.6  million,   ($213.8)   million  and  ($12.3)   million,
respectively,  for the year ended December 31, 1999 and $194.3 million, ($947.4)
million and $746.3 million,  respectively, for the year ended December 31, 1998.
Changes in all three categories  between 1999 and 1998 are primarily  related to
new office property investments,  the sale of senior housing investments and the
spin-off of SNH.

         Cash flow  provided by  operating  activities  and cash  available  for
distribution  may not  necessarily  equal funds from  operations as cash flow is
affected by other factors not included in the funds from operations calculation,
such as changes in assets and liabilities.

Year Ended December 31, 1998 Compared to Year Ended December 31, 1997

         Total revenues for the year ended December 31, 1998 increased to $356.6
million from $208.9 million for the year ended December 31, 1997.  Revenues from
our office segment increased $152.3 million and revenues from our senior housing
segment decreased $3.1 million. The increase in revenues from our office segment
is due to our increased real estate  investments in office buildings in 1998 and
1997. The decrease in rental income from our senior housing  segment is a result
of the repayment of some of our senior housing mortgage loan investments.

         Total  expenses  for the year ended  December  31,  1998,  increased to
$219.8  million  from  $114.5  million  for the year ended  December  31,  1997.
Operating  expenses  increased  by $50.8  million  as a result of our  increased
investment  in  "gross  leased"  real  estate  assets  during  the 1998 and 1997
periods. Interest expense increased to $64.3 million for the year ended December
31, 1998,  from $36.8 million for the year ended  December 31, 1997, as a result
of higher borrowings outstanding in the 1998 period compared to the 1997 period.
Similarly, depreciation and amortization and general and administrative expenses
increased  between 1998 and 1997 as a result of new real estate  investments  in
1998 and 1997.

                                       23
<PAGE>

Item 7. Management's  Discussion and Analysis of Financial Condition and Results
of Operations - continued

         Net income was $144.5 million, or $1.21 per basic and diluted share for
1998,  compared  to $114.0  million,  or $1.24 per basic and diluted
share for 1997.  Net income  increased  primarily as a result of new
real  estate  investments  in 1998 and 1997.  On a per share  basis,  net income
decreased due to the issuance of additional shares in 1998 and 1997.

         Funds from operations for the year ended December 31, 1998, were $227.9
million, or $1.74 per diluted share, versus $162.7 million, or $1.57 per diluted
share,  in 1997. The increase is primarily the result of new investments in 1998
and 1997.  Distributions declared for the years ended December 31, 1998 and 1997
were $190.3 million, or $1.52 per share, and $144.3 million, or $1.46 per share,
respectively.  Distributions  in excess  of net  income  constitute  a return of
capital. For 1998, return of capital was 6.4% of distributions.

         Cash flows  provided by (used for)  operating,  investing and financing
activities   were  $194.3   million,   ($947.4)   million  and  $746.3  million,
respectively, for the year ended December 31, 1998, and $185.7 million, ($815.2)
million and $630 million,  respectively,  for the year ended  December 31, 1997.
The  increases  in all three  categories  are  primarily  the result of new real
estate  investments  in 1998 and 1997 and the related  financings  to fund these
investments.

         Cash flow  provided by  operating  activities  and cash  available  for
distribution  may not  necessarily  equal funds from  operations as cash flow is
affected by other factors not included in the funds from operations calculation,
such as changes in assets and liabilities.

Liquidity and Capital Resources

         Total assets were $3.0  billion at December  31, 1999  compared to $3.1
billion as of December 31, 1998.

         During 1999, we purchased 61 office  buildings  for $516.5  million and
funded $9.7 million of  improvements to our existing  properties,  using cash on
hand,  borrowings  under our bank credit  facility and the  assumption  of $32.4
million of mortgage debt. In addition,  we sold 14 senior housing properties for
net proceeds of $82.2 million and recognized a gain of $8.3 million.  As part of
the sale of 12 of the  senior  housing  properties  during  March  of  1999,  we
provided a $60 million mortgage loan which was paid in full in June 1999.

         During 1999, we received  regularly  scheduled  principal  payments and
repayments  on mortgages  secured by eight senior  housing  properties  totaling
$15.6  million.  We also received a $1 million loan repayment from an affiliate.
During  1999,  we wrote down the  carrying  value of two real  estate  mortgages
secured by four nursing home  properties  by $5 million to reflect our estimated
future discounted realizable value.

         At December 31, 1999,  we owned 12.8 million,  or 49.3%,  of the common
shares of beneficial interest of SNH with a carrying value of $201.8 million and
a market value of $158.5  million.  On March 16,  2000,  the market value of our
12.8 million SNH shares was $109.6 million.

         During January and February of 2000,  two of SNH's tenants,  accounting
for  approximately  48% of  SNH's  revenues,  filed  for  bankruptcy.  Based  on
estimates  of future  cash flows from  properties  leased to these two  bankrupt
tenants,  SNH has  recognized an impairment in the carrying  value of properties
totaling $30 million. This value impairment has reduced SNH's net income for the
year ended  December  31,  1999.  We  recognized  $14.8  million of SNH's  asset
impairment  loss on our  consolidated  statement  of income  for the year  ended
December 31, 1999,  through our 49.3%  ownership  interest in SNH. This non-cash
amount is not reflected in our calculation of FFO. In the short-term,  the level
of dividends paid by SNH to its shareholders, including HRPT, will depend on the
final outcome of SNH's  negotiations with these two tenants.

         In March 2000, SNH and one of its bankrupt tenants reached an agreement
which would result in the  cancellation  and  modification of the leases and the
exchange  of  certain  properties  leased  to the  tenant  for  cash  and  other
consideration. This agreement is subject to final documentation, approval by the
bankruptcy  court  and  approval  by SNH's  board  of  trustees.  Therefore,  no
assurance can be given as to if, and when,  this  transaction  will close, or if
all of the terms  currently  agreed to will be  accepted.  SNH is  currently  in
negotiations to reach a settlement agreement with the other bankrupt tenant. The
current negotiations include, but are not limited to, the possibilities that SNH
will sell the properties,  that lease terms may be changed, that new tenants may
begin operations of properties or that properties may be operated by SNH for its
own  account.   SNH  may  recognize   additional  gains  or  losses  when  these
negotiations  are  completed,  which  will  be  reflected  in  our  consolidated
statement  of  income  through  our 49.3%  ownership  interest  of SNH.  Pending
completion  of the  negotiations,  SNH is relying on an  agreement  with a third
party principal  obligor for payment of rents in evaluating its asset impairment
loss.

                                       24
<PAGE>

Item 7. Management's  Discussion and Analysis of Financial Condition and Results
of Operations - continued

         At December 31, 1999, we owned 4 million, or 7.1%, of the common shares
of  beneficial  interest  of HPT with a carrying  value of $109.3  million and a
market  value of $76.3  million.  On March 16,  2000,  the market value of our 4
million  HPT shares was $80.8  million.  During  1999,  HPT  completed  a public
offering of 10.8 million  common  shares of  beneficial  interest at a per share
price of $26.8125 for total consideration of approximately  $289.9 million. As a
result of this  transaction,  our  ownership  percentage in HPT was reduced from
8.8% to 7.1% and we recognized a loss of $711,000.  Although we did not sell any
shares,  pursuant to our accounting policy,  gains and losses on the issuance of
common  shares  of  beneficial  interest  by HPT are  recognized  in our  income
statement. This amount is not reflected in our calculation of FFO.

         During 1999,  we issued $90 million  unsecured  7.875% senior notes due
2009 and $65 million  unsecured  8.375%  senior notes due 2011.  Net proceeds of
$150.2 million were used to repay amounts outstanding under our revolving credit
facility.  These notes are  callable at par on April 15, 2002 and June 15, 2003,
respectively.  In addition,  we assumed $32.4 million of secured  mortgage notes
payable in connection  with the  acquisition of eight office  properties.  These
mortgage  notes bear  interest at rates  ranging  from 7.02% to 9.12% and mature
between 2004 and 2008.

         At  December  31,  1999,   we  had  $13.2  million  of  cash  and  cash
equivalents, and $132 million outstanding and $368 million available on our $500
million  revolving bank credit facility.  At December 31, 1999, $2.5 billion was
available on our $3 billion shelf registration statement.

         In  December  1999 we  announced a  three-part  initiative.  First,  10
properties  containing  approximately 900,000 square feet have been targeted for
possible sales.  Negotiations for these sales are underway.  If all the targeted
properties  are sold,  the proceeds are expected to be  approximately  $150-$160
million.  Second, we commenced discussions regarding two separate joint ventures
by  which  part  interests  in  different  pools  of  properties  may be sold to
investors.  If these joint  ventures are  successfully  concluded,  we expect to
realize  between $200 million and $400 million,  and at the same time,  the risk
profile of our asset  concentrations  will be diversified.  Third,  the proceeds
from these sales and joint  ventures will be used to prepay debt, to selectively
purchase new investments  and to fund a share buy back program.  There can be no
assurance  that  our  sales  or  joint  venture  efforts  will  be  successfully
concluded.

         There  can be no  assurances  that  debt or  equity  financing  will be
available  to fund  future  growth,  but we do  expect  that  financing  will be
available.  As of December  31,  1999,  our debt as a  percentage  of total book
capitalization was approximately 47%.

Impact of Inflation

         Management  does not believe that the modest  inflation which we expect
to occur in the  United  States  economy  during  the next few years will have a
material effect on our business.  In the real estate market,  inflation tends to
increase  the value of our  underlying  real estate  that may be  realized  when
properties  are sold.  Similarly,  rent  yields we can charge  would most likely
increase  with  inflation.  Conversely,  inflation  might  cause our cost of new
acquisitions  and of debt capital to increase.  To mitigate the potential impact
of inflation on our cost of debt  capital,  we may  purchase  interest  rate cap
contracts when we believe material interest rate increases are likely to occur.

Year 2000

         In prior years,  we  discussed  the nature and progress of our plans to
become Year 2000 compliant and, in late 1999, we completed our  remediation  and
testing of systems.  As a result of our efforts,  we  experienced no significant
disruptions in our information and non-information  technology  systems,  and we
believe these systems  successfully  responded to the Year 2000 date change.  We
are not aware of any material  problems  resulting  from Year 2000 issues by our
systems or the  systems of our  tenants  and  vendors,  but we will  continue to
monitor  these  systems  throughout  the year to ensure  that any late Year 2000
issues  that may  arise  are  addressed  promptly.  Costs  incurred  to date and
anticipated future costs are not material.

                                       25
<PAGE>

Item 7. Management's  Discussion and Analysis of Financial Condition and Results
of Operations - continued

Certain Considerations

The discussion and analysis of our financial condition and results of operations
requires us to make  estimates and  assumptions  and contains  statements of our
beliefs, intent or expectations concerning projections, plans, future events and
performance.  The estimates,  assumptions and statements, such as those relating
to our ability to sell assets at estimated  prices or at any price,  our ability
to  successfully  conclude joint ventures,  our ability to repurchase  shares at
favorable  prices  or at  any  price,  our  ability  to  expand  our  portfolio,
performance of our assets,  the ability to pay  distributions  from FFO, our tax
status as a "real  estate  investment  trust" and the ability to access  capital
markets  depends upon various  factors over which we and our tenants have or may
have limited or no control.  Those  factors  include,  without  limitation,  the
status of the economy,  capital markets (including  prevailing  interest rates),
competition,  changes in federal, state and local legislation and other factors.
We cannot predict the impact of these factors, if any. These factors could cause
our actual  results for  subsequent  periods to be different  from those stated,
estimated or assumed in this discussion and analysis of our financial  condition
and results of  operations.  We believe that our estimates and  assumptions  are
reasonable  at this time.  However,  investors  are cautioned not to place undue
reliance upon our estimates, assumptions or other forward looking statements.

                                       26
<PAGE>

Item 7A.  Quantitative and Qualitative Disclosures About Market Risk

         We are  exposed to market  changes  in  interest  rates.  We manage our
exposure to this  market risk  through our  monitoring  of  available  financing
alternatives.  Our strategy to manage  exposure to changes in interest  rates is
unchanged from December 31, 1998. Furthermore, we do not foresee any significant
changes  in our  exposure  to  fluctuations  in  interest  rates  or in how this
exposure  is  managed  in the near  future.  At  December  31,  1999,  our total
outstanding debt for fixed rate notes consisted of the following:

               Amount                    Coupon                 Maturity
Unsecured senior notes:
              $40.0 million                7.25%                  2001
              160.0 million               6.875%                  2002
              150.0 million                6.75%                  2002
              164.9 million                7.50%                  2003
              100.0 million                 6.7%                  2005
               90.0 million               7.875%                  2009
               65.0 million               8.375%                  2011
              143.0 million                 8.5%                  2013
Secured notes:
               $3.5 million                9.12%                  2004
               11.1 million                8.40%                  2007
               17.7 million                7.02%                  2008
               12.2 million                8.00%                  2008
               10.9 million                7.66%                  2009

         No principal  repayments are due under the unsecured senior notes until
maturity.  If, at maturity,  the unsecured senior notes were to be refinanced at
interest rates which are 1/2 percentage  point higher than shown above,  our per
annum interest cost would increase by  approximately  $4.6 million.  The secured
notes are  secured by 11 of our office  properties  and  require  principal  and
interest payments through maturity.

         The market prices,  if any, of each of our fixed rate obligations as of
December 31, 1999,  are sensitive to changes in interest  rates.  Typically,  if
market  rates of interest  increase,  the current  market  price of a fixed rate
obligation will decrease.  Conversely, if market rates of interest decrease, the
current market price of a fixed rate obligation will typically  increase.  Based
on the  balances  outstanding  at  December  31, 1999 and  discounted  cash flow
analyses, a hypothetical immediate one percentage point change in interest rates
would change the fair value of our fixed rate debt  obligations by approximately
$41.1 million.

         Each of our obligations for borrowed money has provisions that allow us
to make repayments  earlier than the stated maturity date. In some cases, we are
not allowed to make early repayment prior to a cutoff date and in other cases we
are allowed to make  prepayments  only at a premium to face value. In any event,
these  prepayment  rights may afford us the  opportunity to mitigate the risk of
refinancing  at maturity at higher rates by  refinancing at lower rates prior to
maturity.

         At December  31,  1999,  we had a $500  million  unsecured  bank credit
facility  and  unsecured  Remarketed  Reset Notes (the "Reset  Notes") that were
subject to floating  interest  rates.  Because these debt  instruments  are at a
floating rate,  changes in interest rates will not affect their value.  However,
changes in interest rates will affect our operating  results.  For example,  the
interest rate payable on our outstanding Reset Notes of $250 million at December
31, 1999, was 7.43% per annum. An immediate 10% change in that interest rate, or
74 basis points,  would increase or decrease our costs by $1.9 million, or $0.01
per share per year (dollars in thousands):

                                  Impact of Changes in Interest Rates
                        ------------------------------------------------------
                                                                Total Interest
                        Interest Rate         Outstanding        Expense Per
                           Per Year               Debt              Year
                        ---------------      -------------      --------------
At December 31, 1999           7.43%            $250,000             $18,575
10% reduction                  6.69%             250,000              16,725
10% increase                   8.17%             250,000              20,425


                                       27
<PAGE>


Item 7A.  Quantitative and Qualitative Disclosures About Market Risk - continued

         The foregoing table presents a so called "shock" analysis which assumes
that the interest  rate change by 10% is in effect for a whole year. If interest
rates were to change gradually over one year the impact would be less.

         We borrow in U.S.  dollars  and our current  borrowings  under our bank
credit  facility  and our Reset  Notes are  subject to  interest at LIBOR plus a
premium.  Accordingly,  we are vulnerable to changes in U.S.  dollar based short
term rates, specifically LIBOR.

         During the past few months, short-term U.S. dollar based interest rates
have  tended  to rise.  We are  unable to  predict  the  direction  or amount of
interest  rate changes  during the next year. We have decided not to purchase an
interest rate cap or other hedge to protect against future rate  increases,  but
we may enter such agreements in the future.  Also, we may incur  additional debt
at floating or fixed rates,  which would increase our exposure to market changes
in interest rates.

         At  December  31,  1999,  we owned  real  estate  mortgages  and  notes
receivable  with a carrying value of $10.4 million.  When comparable term market
interest  rates  decline,  the  value  of  these  receivables  increases;   when
comparable  term  market  interest  rates rise,  the value of these  receivables
declines.  Using discounted cash flow analyses at a weighted  average  estimated
per year  market  rate of 10.75%,  the  estimated  fair value of our real estate
mortgages  and notes  receivable  at  December  31,  1999 is $11.6  million.  An
immediate  10%  change in the  market  rate of  interest,  or 108 basis  points,
applicable to our real estate  mortgages and notes  receivable  would affect the
fair value of those receivables as follows (dollars in thousands):

                                            Carrying Value
                        Interest Rate         of Mortgage        Estimated Fair
                           Per Year           Receivables             Value
                        -------------------------------------------------------
Estimated market              10.75%            $10,373               $11,556
10% reduction                  9.67%             10,373                11,692
10% increase                  11.83%             10,373                11,422

         If the market rate changes  occur  gradually  over time,  the effect of
these changes would be realized gradually.  Because our mortgage receivables are
fixed rate instruments,  changes in market interest rates will have no effect on
our operating results unless these receivables are sold. At this time, we expect
to hold our existing  mortgages to their  maturity and not to realize any profit
or loss from trading  these  mortgage  receivables.  Also,  we do not  presently
expect to expand our mortgage investments.

         The interest rate changes which affect the  valuations of our mortgages
are U.S.  dollar long term rates for  corporate  obligations  of companies  with
ratings similar to our mortgagors.

Item 8.  Financial Statements and Supplementary Data

         The information  required by this item is included herein in Item 14 of
this Annual Report on Form 10-K.

Item  9.  Changes  in and  Disagreements  with  Accountants  on  Accounting  and
Financial Disclosure

         Not applicable.

                                    PART III

The  information  in Part III  (Items  10,  11,  12 and 13) is  incorporated  by
reference to our definitive Proxy Statement,  which will be filed not later than
120 days after the end of our fiscal year.

                                       28

<PAGE>

                                     PART IV

Item 14.  Exhibits, Financial Statement Schedules and Reports on Form 8-K

(a)     Index to Financial Statements and Financial Statement Schedules

                              HRPT PROPERTIES TRUST
<TABLE>
<CAPTION>
         The following consolidated financial statements and financial statement
schedules of HRPT Properties Trust are included herein on the pages indicated:
                                                                                                      Page
<S>                                                                                                   <C>
Report of Ernst & Young  LLP,  Independent  Auditors                                                   F-1
Report of Arthur Andersen LLP,  Independent  Public  Accountants                                       F-2
Consolidated  Balance Sheets as of December  31, 1999 and 1998                                         F-3
Consolidated  Statements  of Income for each of the three years in the period
    ended December 31, 1999                                                                            F-4
Consolidated Statements of Shareholders' Equity for each of the three years in the period ended
    December 31, 1999                                                                                  F-5
Consolidated Statements of Cash Flows for each of the three years in the period ended December
    31, 1999                                                                                           F-6
Notes to Consolidated Financial Statements                                                             F-8
Schedule  II - Valuation and Qualifying Accounts                                                       S-1
Schedule III - Real Estate and Accumulated Depreciation                                                S-2
Schedule IV - Mortgage Loans on Real Estate                                                            S-9

</TABLE>
         All other  schedules  for  which  provision  is made in the  applicable
accounting  regulations  of the  Securities  and  Exchange  Commission  are  not
required under the related instructions, or are inapplicable, and therefore have
been omitted.

(b)      Reports on Form 8-K

         During  the  fourth  quarter of 1999,  we filed the  following  Current
Reports on Form 8-K:

         (i)      Current Report on Form 8-K dated October 12, 1999, relating to
                  a)  the  spin-off  of  Senior  Housing  Properties  Trust,  b)
                  unaudited pro forma consolidated financial statements,  and c)
                  filing as  exhibits:  1)  Transaction  Agreement,  dated as of
                  September 21, 1999,  between Senior Housing  Properties  Trust
                  and HRPT  Properties  Trust,  and 2)  Promissory  Note,  dated
                  September  1, 1999,  from SPTMRT  Properties  Trust and Senior
                  Housing Properties Trust, as makers, to HRPT Properties Trust,
                  as holder (Items 2 and 7).

          (ii)    Current Report on Form 8-K dated  December 16, 1999,  relating
                  to a) the  election of new trustee and senior vice  president,
                  b) the possible sale of properties and share buy back program,
                  c) amendment to HRPT Properties Trust advisory agreement,  and
                  d)  filing  as  an  exhibit:   Amendment  No.  1  to  Advisory
                  Agreement,   dated  as  of  October  12,  1999,  between  HRPT
                  Properties Trust and REIT Management & Research, Inc. (Items 5
                  and 7).

(c)      Exhibits

         3.1      Composite   Copy  of  Third   Amendment  and   Restatement  of
                  Declaration  of Trust of the  Company  dated July 1, 1994,  as
                  amended to date.  (incorporated  by reference to the Company's
                  Current Report on Form 8-K, dated July 1, 1998)

         3.2      Articles   Supplementary  dated  November  4,  1994  to  Third
                  Amendment and  Restatement  of Declaration of Trust dated July
                  1, 1994 creating the Junior  Participating  Preferred  Shares.
                  (incorporated by reference to the Company's  Current Report on
                  Form 8-K, dated May 27, 1998)

         3.3      Articles  Supplementary  dated May 13, 1997 to Third Amendment
                  and  Restatement  of  Declaration  of Trust dated July 1, 1994
                  increasing   the  Junior   Participating   Preferred   Shares.
                  (incorporated by reference to the Company's  Current Report on
                  Form 8-K, dated May 27, 1998)


                                       29
<PAGE>
         3.4      Articles  Supplementary  dated May 22, 1998 to Third Amendment
                  and  Restatement  of  Declaration  of Trust dated July 1, 1997
                  increasing   the  Junior   Participating   Preferred   Shares.
                  (incorporated by reference to the Company's  Current Report on
                  Form 8-K, dated May 27, 1998)

         3.5      By-laws of the Company, as amended  (incorporated by reference
                  to the Company's  Current  Report on Form 8-K, dated March 11,
                  1999)

         4.1      Form of Common Share  Certificate.  (incorporated by reference
                  to the Company's  Current  Report on Form 8-K, dated March 11,
                  1999)

         4.2      Rights  Agreement  dated  October 17, 1994 between the Company
                  and State  Street  Bank and  Trust  Company,  as Rights  Agent
                  (including the form of Articles  Supplementary relating to the
                  Junior  Participating  Preferred  Shares annexed as an exhibit
                  thereto).  (incorporated by reference to the Company's Current
                  Report on Form 8-A, dated October 24, 1994)

         4.3      Indenture, dated as of September 20, 1996, between the Company
                  and Fleet National Bank ("Fleet") as trustee. (incorporated by
                  reference to the Company's Registration Statement on Form S-3,
                  File No. 333-02863)

         4.4      First  Supplemental  Indenture,  dated as of  October 7, 1996,
                  between  the Company  and Fleet,  as Trustee,  relating to the
                  Company's 7.5% Convertible  Subordinated  Debentures due 2003,
                  Series A, including form thereof.  (incorporated  by reference
                  to the Company's  Current Report on Form 8-K, dated October 7,
                  1996)

         4.5      Second Supplemental Indenture,  dated October 7, 1996, between
                  the Company and Fleet,  as trustee,  relating to the Company's
                  7.5% Convertible  Subordinated  Debentures due 2003, Series B,
                  including  form  thereof.  (incorporated  by  reference to the
                  Company's Current Report on Form 8-K, dated October 7, 1996)

         4.6      Third  Supplemental  Indenture,  dated as of  October 7, 1996,
                  between  the Company  and Fleet,  as trustee,  relating to the
                  Company's 7.25% Convertible  Subordinated Debentures due 2001,
                  including  form  thereof.  (incorporated  by  reference to the
                  Company's Current Report on Form 10-K, dated October 7, 1996)

         4.7      Indenture,  dated  as of  July 9,  1997,  by and  between  the
                  Company and State Street Bank and Trust  Company,  as Trustee.
                  (incorporated  by reference to the Company's  Annual Report on
                  Form 10-K for the year ended December 31, 1997)

         4.8      Supplemental Indenture, dated July 9, 1997, by and between the
                  Company and State Street Bank and Trust  Company,  as Trustee,
                  relating  to the  Remarketed  Reset  Notes  due July 9,  2007.
                  (incorporated  by reference to the Company's  Annual Report on
                  Form 10-K for the year ended December 31, 1997)

         4.9      Supplemental  Indenture  No. 2, dated as of February  23, 1998
                  between the Company and State  Street bank and Trust  Company,
                  relating to  $50,000,000  in  principal  amount of  Remarketed
                  Reset Notes due July 9, 2007.  (incorporated  by  reference to
                  the  Company's  Annual  Report on Form 10-K for the year ended
                  December 31, 1997)

         4.10     Form of Global Note relating to the Remarketed Reset Notes due
                  July 9, 2007.  (incorporated  by  reference  to the  Company's
                  Current Report on Form 8-K, dated July 2, 1997)

         4.11     Supplemental  Indenture No. 3 dated as of February 23, 1998 by
                  and  between  the  Company  and  State  Street  Bank and Trust
                  Company, relating to the Company's 6.7% Senior Notes due 2005,
                  including  form  thereof.  (incorporated  by  reference to the
                  Company's  Annual  Report  on Form  10-K  for the  year  ended
                  December 31, 1997)

         4.12     Supplemental  Indenture  No. 4 dated as of August 26,  1998 by
                  and  between  the  Company  and  State  Street  Bank and Trust
                  Company,  relating  to  $160,000,000  in  aggregate  principal
                  amount of 6 ?% Senior Notes due 2002,  including form thereof.
                  (incorporated  by reference to the Company's  Quarterly Report
                  on Form 10-Q for the quarter ended September 30, 1998)

                                       30
<PAGE>
         4.13     Supplemental  Indenture No. 5 dated as of November 30, 1998 by
                  and  between  the  Company  and  State  Street  Bank and Trust
                  Company,  relating  to  $130,000,000  in  aggregate  principal
                  amount  of  81/2%  Monthly   Income  Senior  Notes  due  2013,
                  including  form  thereof.  (incorporated  by  reference to the
                  Company's Current Report on Form 8-K, dated March 11, 1999)

         4.14     Supplemental Indenture No. 6 dated as of March 24, 1999 by and
                  between the Company and State  Street Bank and Trust  Company,
                  relating to $90,000,000 in aggregate  principal amount of 7 ?%
                  Monthly Income Senior Notes due 2009,  including form thereof.
                  (incorporated  by reference to the Company's  Annual Report on
                  Form 10-K for the year ended December 31, 1998)

         4.15     Supplemental  Indenture  No. 7, dated as of June 17, 1999,  by
                  and  between  the  Company  and  State  Street  Bank and Trust
                  Company, relating to $65,000,000 in aggregate principal amount
                  of 8?% Monthly  Income Senior Notes due 2011,  including  form
                  thereof).  (incorporated by reference to the Company's Current
                  Report on Form 8-K, dated June 14, 1999)

         4.16     Indenture  dated as of  December  18,  1997 by and between the
                  Company and State Street Bank and Trust  Company,  as Trustee.
                  (incorporated by reference to the Company's  Current Report on
                  Form 8-K, dated December 5, 1997)

         4.17     Supplemental  Indenture  dated as of December  18, 1997 by and
                  between the Company and State  Street Bank and Trust  Company,
                  as Trustee,  relating to the Company's 6 3/4% Senior Notes due
                  2002,  including form thereof.  (incorporated  by reference to
                  the Company's  Current  Report on Form 8-K,  dated December 5,
                  1997)

         8.1      Opinion of Sullivan & Worcester LLP as to certain tax matters.
                  (filed herewith)

         9.1      Amended and Restated AMS Voting Trust Agreement. (incorporated
                  by reference to the Company's  Registration  Statement on Form
                  S-11, File No. 33-55684, dated December 23, 1992)

         10.1     Advisory  Agreement by and between REIT Management & Research,
                  Inc.  and  the  Company   dated  as  of  January  1,  1998.(+)
                  (incorporated by reference to the Company's  Current Report on
                  Form 8-K, dated February 11, 1998)

         10.2     Amendment No. 1 to Advisory  Agreement between the Company and
                  REIT Management & Research, Inc. dated as of October 12, 1999.
                  (+) (incorporated by reference to the Company's Current Report
                  on Form 8-K, dated December 16, 1999)

         10.3     Agreement (for Property  Management and Leasing Agent) between
                  M&P Partners Limited  Partnership and various  subsidiaries of
                  the  Company,  effective  as of March 25,  1997,  relating  to
                  properties  leased to Agencies of the United States Government
                  (incorporated  by reference to the Company's  Quarterly Report
                  on Form 10-Q for the quarter ended September 30, 1999)

         10.4     Master Management  Agreement by and among M&P Partners Limited
                  Partnership and the parties named therein dated as of December
                  31, 1997.  (incorporated by reference to the Company's Current
                  Report on Form 8-K, dated February 27, 1998)

         10.5     Master  Management  Agreement  by and  between the Company and
                  REIT  Management  & Research,  Inc.  dated as of December  31,
                  1997.  (incorporated  by  reference to the  Company's  Current
                  Report on Form 8-K, dated February 27, 1998)

         10.6     Representative  Property Management Agreement,  for properties
                  managed by REIT Management & Research, Inc. (filed herewith)

         10.7     Parking  Operation  Management  Agreement  by and  between HUB
                  Properties  Trust,  a  subsidiary  of the  Company,  and  REIT
                  Management  &  Research,  Inc.  dated as of  January  1, 1998.
                  (incorporated by reference to the Company's  Current Report on
                  Form 8-K, dated February 27, 1998)

         10.8     Incentive Share Award Plan.(+)  (incorporated  by reference to
                  the Company's  Registration  Statement on Form S-11,  File No.
                  33-55684, dated December 23, 1992)

         10.9     Fourth Amended and Restated Revolving Credit Agreement,  dated
                  as of April 2,  1998,  among the  Company,  as  borrower,  the
                  lenders named therein, Dresdner Kleinwort Benson North America
                  LLC, as agent,  and Fleet  National  Bank,  as  administrative
                  agent.  (incorporated  by reference to the  Company's  Current
                  Report on Form 8-K, dated April 14, 1998)

                                       31
<PAGE>

         10.10    First Amendment and Limited Waiver to Loan Agreement, dated as
                  of February 12,  1999,  among the  Company,  as borrower,  the
                  lenders named  therein,  and Dresdner  Kleinwart  Benson North
                  America LLC, as agent. (filed herewith)

         10.11    Transaction  Agreement between Senior Housing Properties Trust
                  and the Company, dated as of September 21, 1999. (incorporated
                  by  reference  to the  Company's  Current  Report on Form 8-K,
                  dated October 12, 1999)

         10.12    Promissory  Note  from  SPTMRT  Properties  Trust  and  Senior
                  Housing  Properties  Trust, as makers,  to the Company,  dated
                  September 1, 1999. (incorporated by reference to the Company's
                  Current Report on Form 8-K, dated October 12, 1999)

         12.1     Statement regarding  computation of ratio of earnings to fixed
                  charges. (filed herewith)

         21.1     Subsidiaries of the Registrant.  (filed herewith)

         23.1     Consent of Ernst & Young LLP. (filed herewith)

         23.2     Consent of Arthur Andersen LLP. (filed herewith)

         23.3     Consent  of  Sullivan &  Worcester  LLP  (included  as part of
                  Exhibit 8.1 hereto)

         27.1     Financial Data Schedule. (filed herewith)

(+) Management contract or compensatory plan or arrangement.


                                       32
<PAGE>
                         REPORT OF INDEPENDENT AUDITORS


To the Trustees and Shareholders of HRPT Properties Trust

We have audited the accompanying  consolidated balance sheets of HRPT Properties
Trust as of December 31, 1999 and 1998, and the related consolidated  statements
of income,  shareholders'  equity, and cash flows for each of the three years in
the period  ended  December  31, 1999.  Our audits also  included the  financial
statements  and  schedules  listed in the Index at Item 14(a).  These  financial
statements and schedules are the responsibility of the Company's management. Our
responsibility  is to  express  an opinion  on these  financial  statements  and
schedules  based  on  our  audits.  The  financial   statements  of  Hospitality
Properties Trust (a real estate investment trust in which the Company has a 7.1%
and 8.8%  interest as of December  31,  1999 and 1998,  respectively)  have been
audited by other  auditors whose report has been furnished to us; insofar as our
opinion on the consolidated  financial  statements  relates to data included for
Hospitality Properties Trust, it is based solely on their report.

We conducted our audits in accordance with auditing standards generally accepted
in the United States. Those standards require that we plan and perform the audit
to obtain reasonable  assurance about whether the financial  statements are free
of material misstatement. An audit includes examining, on a test basis, evidence
supporting  the amounts and  disclosures in the financial  statements.  An audit
also includes assessing the accounting principles used and significant estimates
made by  management,  as well as  evaluating  the  overall  financial  statement
presentation.  We  believe  that our  audits  and the  report of other  auditors
provide a reasonable basis for our opinion.

In our  opinion,  based on our  audits  and the  report of other  auditors,  the
financial statements referred to above present fairly, in all material respects,
the  consolidated  financial  position of HRPT Properties  Trust at December 31,
1999 and 1998, and the consolidated results of its operations and its cash flows
for each of the three years in the period ended December 31, 1999, in conformity
with accounting principles generally accepted in the United States. Also, in our
opinion, the related financial statement schedules,  when considered in relation
to the  basic  financial  statements  taken as a whole,  present  fairly  in all
material respects the information set forth therein.



                                                       /s/ Ernst & Young LLP

                                                       ERNST & YOUNG LLP

Boston, Massachusetts
March 17, 2000


                                      F-1
<PAGE>

                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS


To the Trustees and Shareholders of Hospitality Properties Trust:

We have audited the consolidated  balance sheet of Hospitality  Properties Trust
and  subsidiaries  (the  "Company")  as of December  31, 1999 and 1998,  and the
related consolidated  statements of income,  shareholders' equity and cash flows
(not presented  herein) for each of the three years in the period ended December
31, 1999.  These financial  statements are the  responsibility  of the Company's
management.  Our  responsibility  is to express  an  opinion on these  financial
statements based on our audits.

We conducted our audits in accordance with auditing standards generally accepted
in the United States.  Those standards require that we plan and perform an audit
to obtain reasonable  assurance about whether the financial  statements are free
of material misstatement. An audit includes examining, on a test basis, evidence
supporting  the amounts and  disclosures in the financial  statements.  An audit
also includes assessing the accounting principles used and significant estimates
made by  management,  as well as  evaluating  the  overall  financial  statement
presentation.  We believe  that our audits  provide a  reasonable  basis for our
opinion.

In our opinion, the consolidated  financial statements referred to above present
fairly,  in  all  material  respects,  the  financial  position  of  Hospitality
Properties  Trust and  subsidiaries  as of  December  31,  1999 and 1998 and the
results of their  operations and their cash flows for each of the three years in
the period ended  December 31, 1999, in conformity  with  accounting  principles
generally accepted in the United States.



                                                     /s/ Arthur Andersen LLP

                                                     ARTHUR ANDERSEN LLP

Vienna, Virginia
January 14, 2000


                                      F-2
<PAGE>
<TABLE>
<CAPTION>

                                       HRPT PROPERTIES TRUST

                                    CONSOLIDATED BALANCE SHEETS
                          (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)


                                                                            December 31,
                                                                  --------------------------------
                                                                       1999                1998
                                                                  --------------------------------
<S>                                                              <C>                  <C>
ASSETS
Real estate properties, at cost (including properties leased to
affiliates with a cost of $113,594 in 1998):
   Land                                                           $   354,173          $   369,770
   Buildings and improvements                                       2,302,171            2,586,712
                                                                  --------------------------------
                                                                    2,656,344            2,956,482
   Less accumulated depreciation                                      106,859              169,811
                                                                  --------------------------------
                                                                    2,549,485            2,786,671
Real estate mortgages and notes receivable, net (including note
   from an affiliate of $1,000 in 1998)                                10,373               69,228
Equity investments                                                    311,113              113,234
Cash and cash equivalents                                              13,206               15,643
Interest and rents receivable                                          36,683               33,549
Other assets, net                                                      32,448               45,732
                                                                  --------------------------------
                                                                  $ 2,953,308          $ 3,064,057
                                                                  ================================


LIABILITIES AND SHAREHOLDERS' EQUITY
Bank notes payable                                                $   132,000          $   100,000
Senior notes payable, net                                             957,586              802,439
Mortgage notes payable                                                 55,441               24,779
Convertible subordinated debentures                                   204,863              204,863
Accounts payable and accrued expenses                                  53,851               44,446
Deferred rents                                                          9,005               34,162
Security deposits                                                       7,041               18,383
Due to affiliates                                                      11,054                7,192

Commitments and contingencies

Shareholders' equity:
   Preferred shares of beneficial interest, $0.01 par value:
      50,000,000 shares authorized, none issued                            --                   --
   Common shares of beneficial interest, $0.01 par value:
      150,000,000 shares authorized, 131,908,126 shares and
      131,547,178 shares issued and outstanding, respectively           1,319                1,315
   Additional paid-in capital                                       1,971,366            1,964,878
   Cumulative net income                                              678,676              564,814
   Distributions                                                   (1,121,533)            (703,214)
   Unrealized holding losses on investments                            (7,361)                  --
                                                                  --------------------------------
      Total shareholders' equity                                    1,522,467            1,827,793
                                                                  --------------------------------
                                                                  $ 2,953,308          $ 3,064,057
                                                                  ================================
</TABLE>

See accompanying notes

                                                F-3
<PAGE>
<TABLE>
<CAPTION>
                                        HRPT PROPERTIES TRUST

                                  CONSOLIDATED STATEMENTS OF INCOME
                           (AMOUNTS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)

                                                                        Year Ended December 31,
                                                                 -----------------------------------
                                                                   1999          1998         1997
                                                                 -----------------------------------
<S>                                                             <C>          <C>          <C>
Revenues:
   Rental income                                                 $ 416,198    $ 340,851    $ 188,000
   Interest and other income                                        11,343       15,703       20,863
                                                                 -----------------------------------
      Total revenues                                               427,541      356,554      208,863
                                                                 -----------------------------------

Expenses:
   Operating expenses                                              116,365       77,536       26,765
   Interest                                                         87,470       64,326       36,766
   Depreciation and amortization                                    73,382       60,764       39,330
   General and administrative                                       18,704       17,172       11,670
   Impairment of assets                                              7,000           --           --
   Senior Housing Properties Trust transaction costs                16,739           --           --
                                                                 -----------------------------------
      Total expenses                                               319,660      219,798      114,531
                                                                 -----------------------------------

Income before equity in (loss) earnings of equity investments,
   gain on sale of properties and extraordinary item               107,881      136,756       94,332
Equity in (loss) earnings of equity investments                     (1,615)       7,687        8,590
(Loss) gain on equity transaction of equity investments               (711)       2,213        9,282
                                                                 -----------------------------------
Income before gain on sale of properties and
   extraordinary item                                              105,555      146,656      112,204

Gain on sale of properties, net                                      8,307           --        2,898
                                                                 -----------------------------------
Income before extraordinary item                                   113,862      146,656      115,102

Extraordinary item - early extinguishment of debt                       --       (2,140)      (1,102)
                                                                 -----------------------------------
Net income                                                       $ 113,862    $ 144,516    $ 114,000
                                                                 ===================================

Weighted average shares outstanding                                131,843      119,867       92,168
                                                                 ===================================

Basic and diluted earnings per common share:
   Income before gain on sale of properties and
      extraordinary item                                         $    0.80    $    1.22    $    1.22
                                                                 ===================================
   Income before extraordinary item                              $    0.86    $    1.22    $    1.25
                                                                 ===================================
   Net income                                                    $    0.86    $    1.21    $    1.24
                                                                 ===================================
</TABLE>

See accompanying notes


                                                 F-4
<PAGE>
<TABLE>
<CAPTION>
                                                    HRPT PROPERTIES TRUST

                                       CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY
                                                    (DOLLARS IN THOUSANDS)

                                                                                                      Accumulated
                                                          Additional  Cumulative                       Other
                                 Number of      Common      Paid-in       Net                       Comprehensive
                                  Shares        Shares      Capital     Income   Distributions          Loss         Total
                              ----------------------------------------------------------------------------------------------
<S>                               <C>          <C>       <C>          <C>        <C>                    <C>    <C>
Balance at December 31, 1996       66,888,917   $  669    $  795,263   $306,298   $  (394,182)           $--    $   708,048

Issuance of shares to
   acquire real estate              3,985,028       40        76,521         --            --             --         76,561
Issuance of shares                 27,025,000      270       482,883         --            --             --        483,153
Conversion of convertible
   subordinated debentures, net       910,379        9        15,756         --            --             --         15,765
Stock grants                           43,846       --           813         --            --             --            813
Net income                                 --       --            --    114,000            --             --        114,000
Distributions                              --       --            --         --      (132,080)            --       (132,080)
                                 -------------------------------------------------------------------------------------------
Balance at December 31, 1997,      98,853,170      988     1,371,236    420,298      (526,262)            --      1,266,260

Issuance of shares to
   acquire real estate                286,400        3         5,702         --            --             --          5,705
Issuance of shares                 31,977,575      320       579,986         --            --             --        580,306
Conversion of convertible
   subordinated debentures, net       362,217        3         6,626         --            --             --          6,629
Stock grants                           67,816        1         1,328         --            --             --          1,329
Net income                                 --       --            --    144,516            --             --        144,516
Distributions                              --       --            --         --      (176,952)            --       (176,952)
                                 -------------------------------------------------------------------------------------------
Balance at December 31, 1998      131,547,178    1,315     1,964,878    564,814      (703,214)            --      1,827,793

Issuance of shares to
   acquire real estate                256,246        3         4,956         --            --             --          4,959
Stock grants                          104,702        1         1,532         --            --             --          1,533
Comprehensive income (loss):
   Net income                              --       --            --    113,862            --             --        113,862
   Other comprehensive loss:
     Unrealized holding
       losses on investments               --       --            --         --            --         (7,361)        (7,361)
                                 -------------------------------------------------------------------------------------------
Total comprehensive income (loss)          --       --            --    113,862            --         (7,361)       106,501
                                 -------------------------------------------------------------------------------------------
Distribution of Senior Housing
   Properties Trust shares                 --       --            --         --      (225,487)            --       (225,487)
Distributions                              --       --            --         --      (192,832)            --       (192,832)
                                 -------------------------------------------------------------------------------------------
Balance at December 31, 1999      131,908,126   $1,319    $1,971,366   $678,676   $(1,121,533)   $    (7,361)   $ 1,522,467
                                 ===========================================================================================

</TABLE>

See accompanying notes
                                                             F-5
<PAGE>
<TABLE>
<CAPTION>
                                                  HRPT PROPERTIES TRUST

                                          CONSOLIDATED STATEMENTS OF CASH FLOWS
                                                 (DOLLARS IN THOUSANDS)
                                                                                       Year Ended December 31,
                                                                            ------------------------------------------
                                                                                1999            1998          1997
                                                                            ------------------------------------------
<S>                                                                           <C>            <C>            <C>
Cash flows from operating activities:
    Net income                                                                 $113,862       $144,516       $114,000
    Adjustments to reconcile net income to cash
       provided by operating activities:
           Gain on sale of properties, net                                       (8,307)            --         (2,898)
           Equity in loss (earnings) of equity investments                        1,615         (7,687)        (8,590)
           Loss (gain) on equity transaction of equity investments                  711         (2,213)        (9,282)
           Distributions from equity investments                                 18,606         10,320          9,640
           Extraordinary item                                                        --          2,140          1,102
           Impairment of assets                                                   7,000             --             --
           Depreciation                                                          70,080         58,837         37,619
           Amortization                                                           3,302          1,927          1,711
           Amortization of deferred interest costs and bond discounts               147             72            699
           Change in assets and liabilities:
              Increase in interest and rents receivable and other assets         (8,677)       (36,967)        (5,113)
              Increase in accounts payable and accrued expenses                  13,321         16,581         10,832
              Increase in deferred rents                                          2,892          4,073         22,481
              Increase (decrease) in security deposits                            3,893           (384)        10,380
              Increase in due to affiliates                                       5,175          3,129          3,119
                                                                               --------------------------------------
           Cash provided by operating activities                                223,620        194,344        185,700
                                                                               --------------------------------------

Cash flows from investing activities:
    Real estate acquisitions and improvements                                  (493,809)      (761,414)      (548,465)
    Acquisition of business, less cash acquired                                      --             --       (337,400)
    Investments in real estate mortgages receivable                                  --       (226,000)          (520)
    Proceeds from repayment of real estate mortgages and notes receivable        75,598         33,095         48,245
    Proceeds from sale of real estate                                            22,177          5,565         22,898
    Proceeds from repayment of loans to affiliate                                 1,000          1,365             --
    Proceeds from loan to Senior Housing Properties Trust                       200,000             --             --
    Contribution to Senior Housing Properties Trust                             (18,727)            --             --
                                                                               --------------------------------------
           Cash used for investing activities                                  (213,761)      (947,389)      (815,242)
                                                                               --------------------------------------

Cash flows from financing activities:
    Proceeds from issuance of common shares                                          --        580,306        483,153
    Proceeds from borrowings                                                    618,500      1,520,967        784,900
    Payments on borrowings                                                     (433,206)    (1,170,050)      (501,261)
    Deferred finance costs incurred                                              (4,758)        (7,938)        (4,668)
    Distributions                                                              (192,832)      (176,952)      (132,080)
                                                                               --------------------------------------
           Cash (used for) provided by financing activities                     (12,296)       746,333        630,044
                                                                               --------------------------------------

(Decrease) increase in cash and cash equivalents                                 (2,437)        (6,712)           502
Cash and cash equivalents at beginning of period                                 15,643         22,355         21,853
                                                                               --------------------------------------
Cash and cash equivalents at end of period                                     $ 13,206       $ 15,643       $ 22,355
                                                                               ======================================
</TABLE>


See accompanying notes

                                                          F-6
<PAGE>
<TABLE>
<CAPTION>
                                       HRPT PROPERTIES TRUST

                                CONSOLIDATED STATEMENTS OF CASH FLOWS
                                       (DOLLARS IN THOUSANDS)

                                                                     Year Ended December 31,
                                                             -----------------------------------
                                                                1999         1998         1997
                                                             -----------------------------------

<S>                                                         <C>          <C>          <C>
Supplemental cash flow information:
    Interest paid                                            $  86,827    $  57,179    $  34,425
                                                             ===================================

Non-cash investing activities:
    Real estate acquisitions                                 $ (32,368)   $(237,404)   $ (11,616)
    Disposition of real estate                                      --       11,404       11,616
    Investment in real estate mortgages receivable              60,000      226,000           --
    Investment in Senior Housing Properties Trust              219,261           --           --

    Acquisition of business, less cash acquired:
       Real estate acquisitions                              $   4,959    $   5,705    $ 439,498
       Working capital, other than cash                             --           --        2,051
       Liabilities assumed                                          --           --      (27,588)
       Net cash used to acquire business                            --           --     (337,400)
                                                             -----------------------------------
       Issuance of shares                                    $   4,959    $   5,705    $  76,561
                                                             ===================================

Non-cash financing activities:
    Assumption of mortgage notes payable                     $  32,368          $--          $--
    Issuance of common shares                                    1,533        7,958       16,578
    Conversion of convertible subordinated debentures, net          --       (6,629)     (15,765)
</TABLE>


See accompanying notes

                                                F-7
<PAGE>

                              HRPT PROPERTIES TRUST

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Note 1.  Organization

      HRPT  Properties  Trust,  a Maryland  real  estate  investment  trust (the
"Company"),  was  organized on October 9, 1986.  As of December  31,  1999,  the
Company had  investments in 195 office  properties  located in 27 states and the
District of Columbia.  In addition, at December 31, 1999, the Company had equity
investments  in  Senior  Housing   Properties   Trust  ("SNH")  and  Hospitality
Properties Trust ("HPT") of 49.3% and 7.1%, respectively.  At December 31, 1999,
SNH had  investments in 93 senior housing  properties in 26 states and HPT owned
210 hotels in 35 states.

Note 2.  Summary of Significant Accounting Policies

Basis  of  Presentation.  The  consolidated  financial  statements  include  the
Company's  investment in 100% owned subsidiaries.  The Company's  investments in
50% or less owned companies over which it can exercise  influence,  but does not
control,  are  accounted  for  using  the  equity  method  of  accounting.   All
inter-company  transactions  have been  eliminated.  The Company uses the income
statement method to account for issuance of common shares of beneficial interest
by SNH and HPT. Under this method,  gains and losses  reflecting  changes in the
value of the  Company's  ownership  stake on issuance of stock by SNH or HPT are
recognized in the Company's income statement.

Real Estate  Property  and  Mortgage  Investments.  Real estate  properties  and
mortgages  are  recorded at cost.  Depreciation  on real estate  investments  is
provided for on a straight-line  basis over estimated useful lives ranging up to
40 years.  Impairment  losses on investments are recognized  where indicators of
impairment are present and the undiscounted  cash flow estimated to be generated
by  the  Company's  investments  is  less  than  the  carrying  amount  of  such
investments.  The determination of undiscounted cash flow includes consideration
of many factors including income to be earned from the investment, holding costs
(exclusive of interest),  estimated selling prices, and prevailing  economic and
market conditions.

Cash and Cash Equivalents. Cash, over-night repurchase agreements and short-term
investments  with  original  maturities  of three  months or less at the date of
purchase are carried at cost plus accrued interest.

Investments in Marketable  Equity  Securities.  Marketable equity securities are
classified  as  available  for sale and carried at fair value,  with  unrealized
gains and losses reported as a separate  component of shareholders'  equity.  At
December 31, 1999,  the Company's  investments in marketable  equity  securities
were  included  in  other  assets  and  had a fair  value  of $4.3  million  and
unrealized holding losses of $7.4 million.  At March 16, 2000, these investments
had a fair value of $3.0 million and unrealized holding losses of $8.7 million.

Deferred Finance Costs. Issuance costs related to borrowings are capitalized and
amortized over the terms of the respective  loans.  Accumulated  amortization at
December 31, 1999 and 1998 was $5.3 million and $2.8 million, respectively.

Revenue  Recognition.  Rental  income from  operating  leases is recognized on a
straight-line  basis over the life of the lease  agreements.  Interest income is
recognized  as earned  over the terms of the real estate  mortgages.  Percentage
rent and additional  mortgage interest revenue is recognized as earned.  For the
years ended  December 31, 1999,  1998 and 1997,  percentage  rent and additional
mortgage  interest  revenue was $3.4  million,  $3.1  million and $3.1  million,
respectively.

Earnings Per Common Share. Basic earnings per common share is computed using the
weighted average number of shares outstanding during the period. At December 31,
1999 and 1998,  $204.9 million of convertible  securities were  convertible into
11.4 million  shares of the  Company.  Basic  earnings per share equals  diluted
earnings  per  share,  as  the  effect  of  these   convertible   securities  is
anti-dilutive to diluted earnings per share.

Reclassifications.   Reclassifications  have  been  made  to  the  prior  years'
financial statements to conform to the current year's presentation.

Income Taxes.  The Company is a real estate  investment trust under the Internal
Revenue Code of 1986,  as amended.  Accordingly,  the Company  expects not to be
subject to federal income taxes  provided it distributes  its taxable income and
meets other  requirements  for  qualifying  as a real estate  investment  trust.
However, it is subject to some state and local taxes on its income and property.

                                      F-8
<PAGE>
Use of Estimates.  Preparation of these financial  statements in conformity with
generally accepted  accounting  principles requires management to make estimates
and  assumptions  that may  affect  the  amounts  reported  in  these  financial
statements  and  related  notes.  The actual  results  could  differ  from these
estimates.

New Accounting  Pronouncements.  The Financial Accounting Standards Board issued
Financial   Accounting   Standards  Board  Statement  No.  133  "Accounting  for
Derivative Instruments and Hedging Activities" ("FAS 133") in 1998. FAS 133 must
be adopted for the Company's 2001 financial statements.  The Company anticipates
that FAS 133  will  not have a  significant  impact  on the  Company's  reported
financial condition or results of operations.

Note 3.  Real Estate Properties

      During the year ended  December 31, 1999,  the Company  acquired 61 office
properties  for an  aggregate  amount  of  approximately  $516.5  million  in 25
separate  transactions.  In addition,  the Company  funded  improvements  to its
existing properties of approximately $9.7 million.

      Also during the year ended December 31, 1999,  the Company  disposed of 14
senior housing  properties,  including 12 senior housing properties leased to an
affiliate,  for net  proceeds  of $82.2  million and  recognized  a gain of $8.3
million.  As part of the  sale of 12  senior  housing  properties,  the  Company
provided a $60 million real estate mortgage  receivable secured by the 12 senior
housing properties that was subsequently paid to the Company in June 1999.

      The Company's real estate properties are leased on a gross lease, modified
gross lease or triple net lease  basis  pursuant  to  noncancelable,  fixed term
operating  leases  expiring from 2000 to 2020.  The triple net leases  generally
require the lessee to provide all property  management  services.  The Company's
gross leases and modified gross leases  require the Company to provide  property
management  services.  The office properties owned by the Company are managed by
REIT Management & Research, Inc. ("RMR"), an affiliate of the Company.

      The future minimum lease payments to be received by the Company during the
current terms of the leases as of December 31, 1999,  are  approximately  $311.0
million in 2000,  $286.1 million in 2001, $254.1 million in 2002, $222.9 million
in 2003, $179.4 million in 2004 and $895.2 million thereafter.

Note 4.  Equity Investments
<TABLE>
<CAPTION>
      At December  31,  1999 and 1998,  the  Company  had the  following  equity
investments (dollars in thousands):

                                   1999                                                   1998
             --------------------------------------------------      ------------------------------------------------
               Ownership         Equity in          Equity            Ownership        Equity in          Equity
              Percentage         Earnings         Investments         Percentage       Earnings         Investments
             --------------    --------------    --------------      -------------    ------------     --------------
<S>              <C>            <C>                  <C>                 <C>             <C>                <C>
   SNH            49.3%          $(9,744)             $201,831              --%           $--                $--
   HPT             7.1             8,129               109,282             8.8           7,687            113,234
                               --------------    --------------                       ------------     --------------
                                 $(1,615)             $311,113                          $7,687           $113,234
                               ==============    ==============                       ============     ==============
</TABLE>
      On  October  12,  1999,  the  Company  spun-off  50.7% of its  100%  owned
subsidiary,  SNH,  by  distributing  13,190,763  common  shares  of  SNH  to the
Company's  shareholders of record on October 8, 1999 (the "Spin-Off").  SNH is a
real estate investment trust that invests principally in income producing senior
housing real estate. In connection with the Spin-Off,  the Company received $200
million from SNH that was used to repay  amounts  outstanding  on the  revolving
bank credit facility.

      The Company  incurred $16.7 million of expenses  relating to the Spin-Off,
which  included  costs of  distributing  SNH shares to  shareholders,  legal and
accounting fees,  Securities and Exchange Commission filing fees, New York Stock
Exchange  listing fees and the up-front costs of establishing  SNH's bank credit
facility.

      Since the Spin-Off, the Company's investment in SNH is accounted for using
the equity method of accounting. Prior to the Spin-Off, the operating results of
SNH were included in the Company's results of operations.  At December 31, 1999,
the Company owned 12,809,237 common shares of beneficial  interest of SNH with a
carrying  value of $201.8  million and a market  value,  based on quoted  market
prices, of $158.5 million.

                                      F-9
<PAGE>

      The  following  summarized  financial  data  of SNH  includes  results  of
operations  prior to the Spin-Off that are included in the Company's  results of
operations (amounts in thousands, except per share amounts):
<TABLE>
<CAPTION>
                                     December 31,                                       Year Ended December 31,
                               -------------------------                         --------------------------------------
                                   1999         1998                                1999          1998         1997
                               ------------ ------------                         ------------ ------------- -----------
<S>                             <C>          <C>           <C>                     <C>           <C>         <C>
Real estate properties, net      $600,030     $637,777      Revenues                $90,790       $88,306     $84,171
Real estate mortgages
receivable, net                    22,939       37,826      Expenses                 75,956        42,070      39,448
                                                                                 ------------ ------------- -----------
Other assets                       31,031       10,693      Net income              $14,834       $46,236     $44,723
                               ------------ ------------                         ============ ============= ===========
                                 $654,000     $686,296
                               ============ ============
                                                            Average shares           26,000        26,000      26,000
                                                                                 ============ ============= ===========
Bank notes payable               $200,000           $--
Deferred rents and other                                    Net income per
deferred revenues                  26,715       28,266         share                  $0.57         $1.78       $1.72
                                                                                 ============ ============= ===========
Security deposits                  15,235       15,235
Other liabilities                   2,644          726
Shareholders' equity              409,406      642,069
                               ------------ ------------
                                 $654,000     $686,296
                               ============ ============
</TABLE>

      In July 1999, one of SNH's tenants,  accounting for 2% of SNH's  revenues,
filed for  bankruptcy.  During  January and February 2000, two of SNH's tenants,
accounting for approximately 48% of SNH's revenues, filed for bankruptcy. SNH is
currently  negotiating with these tenants and evaluating its options,  including
the  possibility of reducing rent,  selling  properties,  and operating  certain
properties  for its own  behalf.  Based on  estimates  of future cash flows from
properties leased to these two tenants,  SNH has recognized an impairment in the
carrying value of certain loans and properties totaling $30 million.  This value
impairment  has  increased  SNH's  expenses and reduced SNH's net income for the
year ended December 31, 1999. The Company has recognized  $14.8 million of SNH's
asset impairment loss on its consolidated statement of income for the year ended
December  31,  1999,  through  its  49.3%  ownership  interest  in  SNH.  In the
short-term,  the level of dividends paid by SNH to the Company in future periods
will depend on the outcome of SNH's negotiations with these two tenants.

      At  December  31,  1999,  the Company  owned  4,000,000  common  shares of
beneficial  interest of HPT with a carrying value of $109.3 million and a market
value,  based on quoted market prices,  of $76.3  million.  HPT is a real estate
investment trust that invests principally in income producing hotel real estate.
During 1999, HPT completed a public stock offering of common shares. As a result
of this transaction,  the Company's ownership percentage in HPT was reduced from
8.8%  in 1998 to 7.1% in  1999  and the  Company  realized  a loss of  $711,000.
Although  the  Company  did not  sell  any  shares,  pursuant  to the  Company's
accounting  policy,  gains  and  losses  on the  issuance  of  common  shares of
beneficial interest by HPT are recognized in the Company's income statement.


                                      F-10
<PAGE>

      Summarized  financial  data of HPT is as follows  (amounts  in  thousands,
except per share amounts):
<TABLE>
<CAPTION>

                                    December 31,                                            Year Ended December 31,
                            ----------------------------                            ----------------------------------------
                                 1999          1998                                     1999          1998         1997
                            -------------- -------------                            ------------- ------------- ------------
    <S>                      <C>           <C>             <C>                        <C>           <C>          <C>

     Real estate                                            Revenues                   $237,218      $174,961     $114,132
        properties, net       $2,082,999    $1,774,811      Expenses                    125,289        86,979       54,979
                                                                                    ------------- ------------- ------------
     Other assets, net           111,853        62,827      Income before
                            -------------- -------------       extraordinary item       111,929        87,982       59,153
                              $2,194,852    $1,837,638
                            ============== =============
                                                            Extraordinary item               --       (6,641)           --
                                                                                    ------------- ------------- ------------
     Security deposits          $246,242      $206,018      Net income                  111,929        81,341       59,153
     Other liabilities           428,895       457,763      Preferred dividends           (5,106)          --           --
     Shareholders' equity                                   Net income available
                               1,519,715     1,173,857         for common
                            -------------- -------------                            ------------- ------------- ------------
                              $2,194,852    $1,837,638         shareholders            $106,823       $81,341      $59,153
                            ============== =============                            ============= ============= ============

                                                            Average shares               52,566        42,317       27,530
                                                                                    ============= ============= ============
                                                            Income before
                                                               extraordinary item
                                                            per share                     $2.13         $2.08        $2.15
                                                                                    ============= ============= ============
                                                            Net income per share          $2.13         $1.92        $2.15
                                                                                    ============= ============= ============
                                                            Net income available
                                                               for common
                                                               shareholders per
                                                               share                      $2.03         $1.92        $2.15
                                                                                    ============= ============= ============
</TABLE>
Note 5.  Real Estate Mortgages and Notes Receivable, Net

                                                              December 31,
                                                        -----------------------
                                                          1999          1998
                                                        -----------------------
                                                         (dollars in thousands)
Mortgage notes receivable, due September 2001 through
   December 2006                                        $ 3,874       $30,961
Mortgage notes receivable due December 2010                  --        18,992
Mortgage notes receivable due December 2000              12,600        12,233
Mortgage notes receivable due December 2016                  --         7,040
Other collateralized notes receivable                        --            12
Loan to an affiliate                                         --         1,000
                                                        -------       -------
                                                         16,474        70,238
Less allowance                                            6,101         1,010
                                                        -------       -------
                                                        $10,373       $69,228
                                                        =======       =======

      During 1999, the Company received regularly  scheduled  principal payments
of $495,000,  repayments of mortgages secured by eight senior housing properties
of $15.1 million,  principal repayment of $1 million from a loan to an affiliate
and $60 million as payment of a mortgage loan  provided in  connection  with the
sale of the 12 senior housing properties  discussed in Note 3. In addition,  the
Company  established  additional reserves and an allowance for the impairment of
two mortgage loans with a carrying value of $15 million, totaling $5.1 million.

      At December 31, 1999, the interest rates on the real estate  mortgages and
notes receivable ranged from 9.96% to 12.5% per annum.

Note 6.  Shareholders' Equity

      During  1999,  the Company  issued  256,246  common  shares as  additional
consideration  in  connection  with the final  installment  payment for the 1997
acquisition  of  office  buildings  leased  to  agencies  of the  United  States
Government,  and issued  89,702 common shares to RMR as the incentive fee earned
for the year ended December 31, 1998.

                                      F-11
<PAGE>

      The Company  originally  reserved 1,000,000 shares of the Company's common
shares  under the  terms of the 1992  Incentive  Share  Award  Plan (the  "Award
Plan").  During 1999,  1998 and 1997,  13,000,  13,000 and 9,500 common  shares,
respectively,  were awarded to officers of the Company and certain  employees of
RMR and HRPT Advisors, Inc. ("Advisors"). In addition, the Independent Trustees,
as part of their annual fee, are each awarded 500 common  shares  annually.  The
shares  awarded to the  Trustees  vest  immediately.  The shares  awarded to the
officers  and  certain  employees  of RMR and  Advisors  vest over a  three-year
period.  At December 31, 1999,  684,426  shares of the  Company's  common shares
remain reserved for issuance under the Award Plan.

      A  dividend  of  $0.32  per  share  was  paid on  February  15,  2000,  to
shareholders of record on January 10, 2000. Cash dividends per share paid by the
Company in 1999, 1998 and 1997 were $1.46, $1.51 and $1.45, respectively.

      The Company has adopted a Shareholders  Rights Plan ("Right").  Each Right
entitles the holder to purchase or to receive  securities or other assets of the
Company upon the occurrence of certain events.  The Rights expire on October 17,
2004 and are redeemable at the Company's option at any time.

Note 7.  Commitments and Contingencies

      The Company is involved in litigation  with a former  tenant.  Since 1995,
the Company has asserted its claims and rights  against the former  tenant.  The
outcome of the Company's  claims and the former tenant's  counter claims against
the Company cannot be predicted.

Note 8.  Transactions with Affiliates

      As of January 1, 1998,  the Company  entered into an agreement with RMR to
provide investment,  management, property management and administrative services
to the Company.  During the year ended  December 31, 1997,  such  services  were
provided by HRPT Advisors,  Inc. and M&P Partners Limited  Partnership  ("M&P"),
affiliates of the Company,  on similar terms. RMR, Advisors and M&P are owned by
Gerard M. Martin and Barry M.  Portnoy,  who also serve as Managing  Trustees of
the Company. RMR is compensated at an annual rate equal to 0.7% of the Company's
real estate  investments up to $250 million and 0.5% of investments  thereafter,
plus property management fees equal to three percent of gross rents. RMR is, and
Advisors  was,  also  entitled to an incentive  fee which is paid in  restricted
shares of the Company's common stock based on a formula.  Incentive fees for the
years ended  December 31, 1999,  1998 and 1997 were  $215,000,  $1.4 million and
$1.0 million,  which represent  approximately  26,221,  89,702 and 52,316 common
shares,  respectively.  During 1999,  RMR sold 89,702 common shares to Gerard M.
Martin and Barry M. Portnoy,  the Managing Trustees of the Company and owners of
RMR. At December 31, 1999,  the Managing  Trustees and Advisors owned 89,702 and
1,134,373 common shares, respectively.

      Prior to the  Spin-Off  of SNH,  the  Company  leased  15  senior  housing
properties  to  four   affiliated   entities   (collectively,   the  "Affiliated
Entities").  In  March  1999,  the  Company  sold  12 of  these  senior  housing
properties  to  an  unaffiliated  party.  The  remaining  three  senior  housing
properties were transferred to SNH as part of the Spin-Off.  Messrs.  Martin and
Portnoy are principal  shareholders of the Affiliated  Entities and,  subject to
the review and approval of this transaction by the Independent Trustees,  may be
entitled  to a portion of the sale  proceeds.  The  Company  also  extended a $4
million line of credit to one of the Affiliated  Entities which was paid off and
terminated  with the sale of the 12  properties  discussed  above.  One  million
dollars  was  outstanding  at  December  31,  1998  under  this  line of  credit
arrangement.

      Amounts  resulting  from  transactions  with  affiliates  are  as  follows
(dollars in thousands):

                                             Year Ended December 31,
                                    ----------------------------------------
                                      1999             1998           1997
                                    ----------------------------------------
Investment advisory fees paid       $15,404           $13,592        $ 8,620
Dividends                             3,807             1,694          1,557
Rent and interest income received     5,870            13,741         13,616
Management fees paid                  9,779             6,703          2,382



                                      F-12
<PAGE>
<TABLE>
<CAPTION>
Note 9.  Indebtedness
                                                                                           December 31,
                                                                                  -----------------------------
                                                                                        1999             1998
                                                                                  -----------------------------
                                                                                     (dollars in thousands)
      <S>                                                                             <C>            <C>
       $500,000 unsecured revolving bank credit facility, due April 2002, at
             LIBOR plus a premium (7.2% at December 31, 1999)                          $132,000       $100,000
       Senior Notes, due 2002 at 6.75%                                                  150,000        150,000
       Senior Notes, due 2002 at 6.875%                                                 160,000        160,000
       Senior Notes, due 2005 at 6.7%                                                   100,000        100,000
       Monthly Income Senior Notes, due 2009 at 7.875%                                   90,000             --
       Monthly Income Senior Notes, due 2011 at 8.375%                                   65,000             --
       Monthly Income Senior Notes, due 2013 at 8.5%                                    143,000        143,000
       Remarketed Reset Notes, due 2007 at LIBOR plus 1.25% (7.4% at December
             31, 1999)                                                                  250,000        250,000
       Mortgage Notes Payable, due 2004 at 9.12%                                          3,533             --
       Mortgage Notes Payable, due 2007 at 8.40%                                         11,095             --
       Mortgage Notes Payable, due 2008 at 7.02%                                         17,672             --
       Mortgage Notes Payable, due 2008 at 8.00%                                         12,237         13,114
       Mortgage Notes Payable, due 2009 at 7.66%                                         10,904         11,665
       Convertible Subordinated Debentures, due 2003 at 7.50%                           164,863        164,863
       Convertible Subordinated Debentures, due 2001 at 7.25%                            40,000         40,000
                                                                                  ----------------------------
                                                                                      1,350,304      1,132,642
       Less unamortized discounts                                                           414            561
                                                                                  ----------------------------
                                                                                     $1,349,890     $1,132,081
                                                                                  ============================
</TABLE>

      During 1999,  the Company  issued  unsecured  senior notes  totaling  $155
million, in two separate  transactions,  raising net proceeds of $150.2 million.
Net proceeds  from the notes were used to repay amounts then  outstanding  under
the Company's revolving bank credit facility.  In addition,  the Company assumed
$32.4  million  of  secured  mortgage  notes  payable  in  connection  with  the
acquisition of eight office properties.

      The Company's convertible subordinated debentures were callable in October
1999 and are  convertible  at any time into common  shares of the Company at $18
per share.

      At December 31, 1999,  11  properties  with an aggregate net book value of
$96.3  million  were secured by mortgages  totaling  $55.4  million due in 2004,
2007, 2008 and 2009.

      The required  principal  payments due during the next five years under all
debt  outstanding at December 31, 1999, are $2.2 million in 2000,  $42.4 million
in 2001,  $444.5 million in 2002,  $167.6 million in 2003,  $6.3 million in 2004
and $687.3 million thereafter.

Note 10.  Fair Value of Financial Instruments

      The Company's  financial  instruments  include cash and cash  equivalents,
real  estate  mortgages  and  notes   receivable,   rents   receivable,   equity
investments,  senior notes,  mortgage  notes  payable,  convertible  debentures,
accounts  payable and other  accrued  expenses,  a letter of credit and security
deposits.  Except as follows, the fair values of the financial  instruments were
not materially different from their carrying values (dollars in thousands):
<TABLE>
<CAPTION>
                                                             1999                                1998
                                                -------------------------------     ----------------------------
                                                  Carrying                             Carrying
                                                   Amount          Fair Value           Amount       Fair Value
                                               -------------------------------      ----------------------------
<S>                                             <C>             <C>                 <C>            <C>
Real estate mortgages and notes receivable          $10,373         $11,556             $69,228        $73,997
Equity investments                                  311,113         234,764             113,234         96,500
Senior notes, mortgage notes payable and
     convertible debentures                       1,217,890       1,186,863           1,032,081      1,020,550
Commitments                                              --              --                  --         21,746
Letter of credit                                         --              --                  --          1,653
</TABLE>

                                      F-13
<PAGE>

      The fair values of the real estate mortgages and notes receivable,  senior
notes, mortgage notes payable and convertible  debentures are based on estimates
using  discounted cash flow analysis and currently  prevailing  rates.  The fair
value of the equity  investments are based on quoted per share prices for HPT of
$19.0625 and $24.125 at December 31, 1999 and 1998,  respectively,  and a quoted
per share price for SNH of $12.375 at December 31,  1999.  The fair value of the
commitments and letter of credit represents the actual amounts committed.

Note 11.  Concentration of Credit Risk

      The Company's  assets are primarily  invested in income  producing  office
properties  located throughout the United States. At December 31, 1999 and 1998,
properties leased to the United States Government represented $421.5 million and
$431.1 million of net real estate investments,  respectively,  and for the years
ended December 31, 1999 and 1998,  provided  rental revenue of $59.6 million and
$60.3  million,  respectively.  At December 31, 1997,  properties  leased to the
United States  Government,  Marriott  International,  Inc. and Integrated Health
Services,  Inc. represented $433.2 million, $299.9 million and $172.8 million of
net  real  estate  investments,  respectively,  and  provided  revenue  of $43.4
million, $30.4 million and $27 million, respectively.

Note 12.  Segment Information

      The  Company  has two  reportable  segments;  senior  housing  and  office
properties.  Substantially  all of the  Company's  senior  housing  assets  were
spun-off on October 12, 1999, and consisted of senior  housing,  congregate care
communities,  assisted living and nursing homes. The Company's office properties
consist of government office, medical office and commercial office properties.

      The Company  evaluates  its segments  based on net operating  income.  The
accounting  policies of the reportable  segments are the same as those described
in the summary of significant accounting policies.

                                      F-14
<PAGE>
      The  following  is a summary of the  Company's  reportable  segments as of
December 31, 1999 and 1998 and for the years ended  December 31, 1999,  1998 and
1997 (dollars in thousands):

                                             Year Ended December 31, 1999
                                       ---------------------------------------
                                        Senior
                                        Housing         Office         Total
                                       ---------------------------------------
Revenues                               $   77,579     $  348,497    $  426,076
Operating expenses                             --        116,365       116,365
Depreciation                               18,578         51,502        70,080
Impairment of assets                        5,000          2,000         7,000
                                       ----------     ----------    ----------
Net operating income                   $   54,001     $  178,630    $  232,631
                                       ==========     ==========    ==========

Real estate at year end                $   10,373     $2,656,344    $2,666,717
Real estate acquired during the year           --        526,177       526,177

                                             Year Ended December 31, 1998
                                       ---------------------------------------
                                        Senior
                                        Housing         Office         Total
                                       ---------------------------------------
Revenues                               $  110,096     $  245,955    $  356,051
Operating expenses                             --         77,536        77,536
Depreciation                               21,798         37,039        58,837
                                       ----------     ----------    ----------
Net operating income                   $   88,298     $  131,380    $  219,678
                                       ==========     ==========    ==========

Real estate at year end                $  895,748     $2,129,962    $3,025,710
Real estate acquired during the year       12,924        985,894       998,818

                                              Year Ended December 31, 1997
                                       ---------------------------------------
                                        Senior
                                        Housing         Office         Total
                                       ---------------------------------------
Revenues                               $113,243       $ 93,670      $206,913
Operating expenses                           --         26,765        26,765
Depreciation                             21,728         15,891        37,619
                                       --------       --------      --------
Net operating income                   $ 91,515       $ 51,014      $142,529
                                       ========       ========      ========

    The following  tables  reconcile  the reported  segment  information  to the
consolidated  financial  statements for the years ended December 31, 1999,  1998
and 1997 (dollars in thousands):
<TABLE>
<CAPTION>
                                                           Year Ended December 31,
                                                   -----------------------------------
                                                      1999        1998          1997
                                                   -----------------------------------
<S>                                               <C>          <C>          <C>
 Revenues:
   Total per reportable segment                    $ 426,076    $ 356,051    $ 206,913
   Unallocated other income                            1,465          503        1,950
                                                   ---------    ---------    ---------
     Total consolidated revenues                   $ 427,541    $ 356,554    $ 208,863
                                                   =========    =========    =========
Net operating income:
   Total per reportable segment                    $ 232,631    $ 219,678    $ 142,529
   Unallocated amounts:
     Other income                                      1,465          503        1,950
     Interest expense                                (87,470)     (64,326)     (36,766)
     Amortization expense                             (3,302)      (1,927)      (1,711)
     General and administrative expenses             (18,704)     (17,172)     (11,670)
     Senior Housing Properties Trust
       transaction costs                             (16,739)          --           --
                                                   ---------    ---------    ---------
     Total  consolidated  income  before  equity
       in (loss)  earnings  of equity
       investments, gain on sale of properties
       and extraordinary item                      $ 107,881    $ 136,756    $  94,332
                                                   =========    =========    =========
</TABLE>
                                      F-15
<PAGE>
                             HRPT PROPERTIES TRUST

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

      For the years ended  December  31,  1999,  1998 and 1997,  office  segment
revenues from the United States  Government  represented  $59.6  million,  $60.3
million,  and  $43.4  million,   respectively,  of  the  Company's  consolidated
revenues.  For the years ended December 31, 1999, 1998 and 1997,  senior housing
segment revenues from Marriott  International,  Inc.  represented $24.2 million,
$31.9 million and $30.4  million,  respectively,  of the Company's  consolidated
revenues. For the same periods,  senior housing segment revenues from Integrated
Health Services,  Inc. represented $21.2 million, $28.4 million and $27 million,
respectively, of the Company's consolidated revenues.

Note 13.  Selected Quarterly Financial Data (Unaudited)

    The following is a summary of the unaudited  quarterly results of operations
of the Company for 1999 and 1998.  The amounts are in  thousands  except for per
share amounts.
<TABLE>
<CAPTION>
                                                                                           1999
                                                                    -------------------------------------------------
                                                                      First       Second       Third        Fourth
                                                                     Quarter     Quarter     Quarter(1)   Quarter(2)
                                                                    -------------------------------------------------
<S>                                                                <C>         <C>          <C>         <C>
Revenues                                                            $ 104,403   $ 106,551    $ 114,805   $ 101,782
Income before equity in earnings (loss) of equity investments,
      gain on sale of properties and extraordinary item                37,288      36,430       13,501      20,662
Equity in earnings (loss) of equity investments                         2,008       2,021        2,023      (7,667)
Gain (loss) on equity transaction of equity investments                    --        (711)          --          --
Income before gain on sale of properties and extraordinary item        39,296      37,740       15,524      12,995
Gain on sale of properties                                              8,307          --           --          --
Income before extraordinary item                                       47,603      37,740       15,524      12,995
Extraordinary item - early extinguishment of debt                          --          --           --          --
Net income                                                             47,603      37,740       15,524      12,995
Per share data:
  Income before equity in earnings (loss) of equity investments,
    gain on sale of properties and extraordinary item                    0.28        0.28         0.10        0.16
  Income before gain on sale of properties and extraordinary item
                                                                         0.30        0.29         0.12        0.10
  Income before extraordinary item                                       0.36        0.29         0.12        0.10
  Net income                                                             0.36        0.29         0.12        0.10


<CAPTION>
                                                                                           1998
                                                                    -------------------------------------------------
                                                                      First       Second       Third        Fourth
                                                                     Quarter     Quarter     Quarter(1)   Quarter(2)
                                                                    -------------------------------------------------
<S>                                                                <C>         <C>          <C>         <C>
Revenues                                                            $  71,952   $  83,291    $  96,960   $ 104,351
Income before equity in earnings of equity investments, gain on
      sale of properties and extraordinary item                        28,522      32,875       38,036      37,323
Equity in earnings of equity investments                                1,327       2,138        2,076       2,146
Gain (loss) on equity transaction of equity investments                 1,532         938           --        (257)
Income before gain on sale of properties and extraordinary item        31,381      35,951       40,112      39,212
Gain on sale of properties                                                 --          --           --          --
Income before extraordinary item                                       31,381      35,951       40,112      39,212
Extraordinary item - early extinguishment of debt                          --      (2,140)          --          --
Net income                                                             31,381      33,811       40,112      39,212
Per share data:
  Income before equity in earnings of equity investments, gain on
    sale of properties and extraordinary item                            0.28        0.29         0.29        0.28
  Income before gain on sale of properties and extraordinary item
                                                                         0.31        0.31         0.30        0.30
  Income before extraordinary item                                       0.31        0.31         0.30        0.30
  Net income                                                             0.31        0.30         0.30        0.30


<FN>
     (1)  Included in total expenses for the third quarter of 1999 are unusual and non-recurring  items aggregating
          $23.7 million:  approximately  $16.7 million  represents SNH transaction costs, and $7 million represents
          the write-down to net realizable value of the carrying value of two real estate mortgages  receivable and
          other assets.


                                      F-16
<PAGE>

                             HRPT PROPERTIES TRUST

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

     (2)  On October 12, 1999, the Company spun-off 50.7% of its 100% owned  subsidiary,  SNH, by distributing 13.2
          million common shares of SNH to shareholders  of record on October 8, 1999.  Also, in the fourth quarter,
          the Company  recognized  $14.8 million as its portion of SNH's asset impairment loss as described in Note
          4.
</FN>
</TABLE>

Note 14.  Pro Forma Information (Unaudited)

     In 1999,  as  described in Note 4, the Company  spun-off  50.7% of its 100%
owned  subsidiary,  SNH, by distributing  13,190,763 common shares of SNH to the
Company's shareholders of record on October 8, 1999.

     In 1997 and 1998, the Company acquired 29 office buildings (the "Government
Properties")  leased to various agencies of the United States Government through
the acquisition of Government Property Investors,  Inc. ("GPI"). The acquisition
was accounted for as a purchase and the net assets and results of operations are
included  in  the   consolidated   financial   statements  since  the  dates  of
acquisition. The acquisitions of the Government Properties were funded, in part,
with the proceeds from the issuance of the Company's common shares pursuant to a
public  offering,  the  issuance  of common  shares of the  Company in a private
placement and the assumption of debt.

     The following unaudited condensed Pro Forma Statements of Income assume the
Spin-Off of SNH and the acquisition of GPI had both occurred on January 1, 1997.

     These pro forma statements of income are not necessarily  indicative of the
expected results of operations for any future period.  Differences  could result
from,  but are not  limited  to,  additional  property  investments,  changes in
interest rates and changes in the debt and equity structure of the Company.
<TABLE>
<CAPTION>
Condensed Pro Forma Statements of Income (unaudited)
(dollars in thousands, except per share amounts)
                                                                            Year Ended December 31,
                                                                   -----------------------------------------
                                                                      1999           1998          1997
                                                                   -----------------------------------------
<S>                                                                  <C>           <C>            <C>
Total revenues                                                        $356,711      $268,248       $136,880
Income before extraordinary item                                        92,058       117,850         93,133
Net income                                                              92,058       115,710         92,031
Income before extraordinary item per basic share                          0.70          0.98           1.00
Net income per basic share                                                0.70          0.97           0.99
</TABLE>


                                      F-17
<PAGE>
<TABLE>
<CAPTION>
                                                        HRPT PROPERTIES TRUST
                                                             SCHEDULE II
                                                  VALUATION AND QUALIFYING ACCOUNTS
                                                          December 31, 1999
                                                       (Dollars in thousands)


                                                              Balance at          Charged to                         Balance at
                                                             Beginning of         Costs and                            End of
Description                                                     Period             Expenses        Deductions(1)       Period
- -------------------------------------------------------------------------------------------------------------------------------
<S>                                                            <C>                 <C>            <C>                  <C>
Year Ended December 31, 1997:
    Allowance for real estate mortgages receivable              $1,743               $200          $(1,016)              $927
                                                        =======================================================================


Year Ended December 31, 1998:
    Allowance for real estate mortgages receivable                $927               $600            $(517)            $1,010
                                                        =======================================================================


Year Ended December 31, 1999:
    Allowance for real estate mortgages receivable              $1,010             $5,600            $(509)            $6,101
                                                        =======================================================================

<FN>
(1)  Represents uncollectable receivables charged against the allowance.
</FN>
</TABLE>


                                                                S-1
<PAGE>
<TABLE>
<CAPTION>
                                                        HRPT PROPERTIES TRUST
                                                            SCHEDULE III
                                              REAL ESTATE AND ACCUMULATED DEPRECIATION
                                                          December 31, 1999
                                                       (Dollars in thousands)


                                                                      Gross Amount Carried at
                                Initial Cost to Company               Close of Period 12/31/98
                                -----------------------               ------------------------
                                                            Costs                                                         Original
                                           Buildings     Capitalized        Buildings             Accumulated             Constr-
                          Encum-              and      Subsequent to          and                 Depreciation   Date      uction
   Location        State  brances  Land     Equipment   Acquisition  Land   Equipment   Total (1)     (2)       Aquired     Date
- ----------------------------------------------------------------------------------------------------------------------------------
<S>                <C>     <C>      <C>        <C>        <C>       <C>     <C>         <C>         <C>          <C>
Office Buildings:
Petersburg          AK      $--       $189       $811       $3      $189        $814      $1,003         $57      3/31/97    1983
Phoenix             AZ       --      1,828     16,453       --     1,828      16,453      18,281         189      7/30/99    1982
Phoenix             AZ       --      2,687     11,532      437     2,729      11,927      14,656         765      5/15/97    1997
Safford             AZ       --        635      2,729       61       647       2,778       3,425         193      3/31/97    1992
Tempe               AZ       --      1,125     10,122       --     1,125      10,122      11,247         137      6/30/99    1987
Tucson              AZ       --        765      3,280       75       779       3,341       4,120         232      3/31/97    1993
Anaheim             CA       --        133      1,201       --       133       1,201       1,334          75      12/5/97    1970
Anaheim             CA       --         82        735        1        82         736         818          46      12/5/97    1970
Anaheim             CA       --        691      6,223        2       692       6,224       6,916         390      12/5/97    1992
Kearney Mesa        CA       --      2,916     12,456      337     2,969      12,740      15,709         883      3/31/97    1994
Los Angeles         CA       --      5,055     49,685    1,131     5,060      50,811      55,871       3,441      5/15/97    1979
Los Angeles         CA       --      5,076     49,884    1,262     5,071      51,151      56,222       3,426      5/15/97    1979
Los Angeles         CA       --      1,921      8,242      190     1,955       8,398      10,353         513      7/11/97    1996
Newport Beach       CA       --      1,220      3,307       17     1,220       3,324       4,544         134      5/26/98    1984
Sacramento          CA       --        644      3,206       77       644       3,283       3,927         441      8/30/94    1984
San Diego           CA       --      2,984     12,859    1,971     3,038      14,776      17,814       1,004      3/31/97    1981
San Diego           CA       --        313      2,820      166       313       2,986       3,299         226     12/31/96    1984
San Diego           CA       --        316      2,846      167       316       3,013       3,329         229     12/31/96    1984
San Diego           CA       --        502      4,526      266       502       4,792       5,294         363     12/31/96    1984
San Diego           CA       --        294      2,650      156       294       2,806       3,100         213     12/31/96    1984
San Diego           CA       --      1,985     18,096      312     1,985      18,408      20,393       1,402      12/5/96    1985
San Diego           CA       --        992      9,040      156       992       9,196      10,188         701      12/5/96    1985
San Diego           CA       --      1,228     11,199      192     1,228      11,391      12,619         868      12/5/96    1985
San Diego           CA       --      4,269     18,316      419     4,347      18,657      23,004       1,293      3/31/97    1996
Aurora              CO       --      1,152     13,272       --     1,152      13,272      14,424         826     11/14/97    1993
Golden              CO       --        494        152    5,862       495       6,013       6,508         272      3/31/97    1997
Lakewood            CO       --        787      7,085       --       787       7,085       7,872          22     11/22/99    1980
Lakewood            CO       --      1,855     16,691       --     1,855      16,691      18,546          52     11/22/99    1980
Wallingford         CT       --        640     10,017       --       640      10,017      10,657         386       6/1/98    1986
Wallingford         CT       --        367      3,301       40       366       3,342       3,708          89     12/22/98    1988
Washington          DC       --      2,485     22,696    1,666     2,485      24,362      26,847       2,082      9/13/96    1976

                                                                S-2
<PAGE>
<CAPTION>
                                                        HRPT PROPERTIES TRUST
                                                            SCHEDULE III
                                              REAL ESTATE AND ACCUMULATED DEPRECIATION
                                                          December 31, 1999
                                                       (Dollars in thousands)


                                                                      Gross Amount Carried at
                                Initial Cost to Company               Close of Period 12/31/98
                                -----------------------               ------------------------
                                                            Costs                                                         Original
                                           Buildings     Capitalized        Buildings             Accumulated             Constr-
                          Encum-              and      Subsequent to          and                 Depreciation   Date      uction
   Location        State  brances  Land     Equipment   Acquisition  Land   Equipment   Total (1)     (2)       Aquired     Date
- ----------------------------------------------------------------------------------------------------------------------------------
<S>                <C>     <C>      <C>        <C>        <C>       <C>     <C>         <C>         <C>          <C>
Washington          DC       --      5,975     53,778      307     5,975      54,085      60,060       2,118      6/23/98    1991
Washington          DC       --      1,851     16,511      595     1,869      17,088      18,957       1,065     12/19/97    1966
Washington          DC       --      6,979     29,949      877     7,107      30,698      37,805       2,168      3/31/97    1989
Washington          DC       --     12,008     51,528    1,285    12,227      52,594      64,821       3,655      3/31/97    1996
Wilmington          DE       --      1,478     13,306        5     1,478      13,311      14,789         152      7/13/99    1984
Wilmington          DE       --      4,409     39,681       37     4,413      39,714      44,127       1,448      7/23/98    1986
Miami               FL       --        144      1,297       24       144       1,321       1,465          60      3/19/98    1987
Orlando             FL       --        256      2,308       64       263       2,365       2,628         111      2/19/98    1997
Orlando             FL       --        722      6,499      (59)      716       6,446       7,162         304      2/19/98    1997
Orlando             FL       --          -        362        1        36         327         363           8      2/19/98    1997
Savannah            GA       --        544      2,330      113       553       2,434       2,987         166      3/31/97    1990
Kansas City         KS       --      1,042      4,469      466     1,061       4,916       5,977         389      3/31/97    1990
Auburn              MA       --        647      5,827       --       647       5,827       6,474           6     12/27/99    1977
Boston              MA       --      1,447     13,028       59     1,448      13,086      14,534       1,402      9/28/95    1993
Boston              MA       --      3,378     30,397    1,711     3,378      32,108      35,486       3,982      9/28/95    1988
Boston              MA       --      1,500     13,500      263     1,500      13,763      15,263       1,424     12/18/95    1875
Charlton            MA       --        141      1,269        8       141       1,277       1,418          84      5/15/97    1988
Fitchburg           MA       --        223      2,004       10       223       2,014       2,237         132      5/15/97    1994
Grafton             MA       --         37        336        4        37         340         377          22      5/15/97    1930
Leominster          MA       --        778      7,003       --       778       7,003       7,781           7     12/27/99    1966
Lexington           MA       --      1,054      9,487       --     1,054       9,487      10,541         465      1/30/98    1968
Milbury             MA       --         34        309        4        34         313         347          21      5/15/97    1950
Milford             MA       --        144      1,297      266       401       1,306       1,707          86      5/15/97    1989
Northbridge         MA       --         32        290        5        32         295         327          19      5/15/97    1962
Paxton              MA       --         24        212        4        24         216         240          14      5/15/97    1984
Quincy              MA       --      2,477     16,645       17     2,477      16,662      19,139         711       4/3/98    1988
Quincy              MA       --      1,668     11,097      334     1,668      11,431      13,099         497       4/3/98    1988
Spencer             MA       --        211      1,902       11       211       1,913       2,124         125      5/15/97    1992
Sturbridge          MA       --         83        751        6        83         757         840          50      5/15/97    1986
Webster             MA       --        315      2,834       14       315       2,848       3,163         187      5/15/97    1995
Westborough         MA       --        396      3,562       15       396       3,577       3,973         235      5/15/97    1986

                                                                S-3
<PAGE>
<CAPTION>
                                                        HRPT PROPERTIES TRUST
                                                            SCHEDULE III
                                              REAL ESTATE AND ACCUMULATED DEPRECIATION
                                                          December 31, 1999
                                                       (Dollars in thousands)


                                                                      Gross Amount Carried at
                                Initial Cost to Company               Close of Period 12/31/98
                                -----------------------               ------------------------
                                                            Costs                                                         Original
                                           Buildings     Capitalized        Buildings             Accumulated             Constr-
                          Encum-              and      Subsequent to          and                 Depreciation   Date      uction
   Location        State  brances  Land     Equipment   Acquisition  Land   Equipment   Total (1)     (2)       Aquired     Date
- ----------------------------------------------------------------------------------------------------------------------------------
<S>                <C>     <C>      <C>        <C>        <C>       <C>     <C>         <C>         <C>          <C>
Westborough         MA       --         42        381        5        42         386         428          25      5/15/97    1900
Westborough         MA       --         24        216        4        24         220         244          14      5/15/97    1953
Westborough         MA       --        166      1,498        8       166       1,506       1,672          99      5/15/97    1977
Westwood            MA       --        537      4,960        1       538       4,960       5,498         368       1/8/97    1977
Westwood            MA       --        500      4,562        1       500       4,563       5,063         176       6/8/98    1990
Westwood            MA       --        303      2,740      499       304       3,238       3,542         245     11/26/96    1980
Worcester           MA       --      1,132     10,186       38     1,132      10,224      11,356         671      5/15/97    1989
Worcester           MA       --        354      3,189       14       354       3,203       3,557         210      5/15/97    1985
Worcester           MA       --        265      2,385       12       265       2,397       2,662         157      5/15/97    1972
Worcester           MA       --        111      1,000      292       397       1,006       1,403          66      5/15/97    1986
Worcester           MA       --        158      1,417        7       157       1,425       1,582          93      5/15/97    1992
Worcester           MA       --        895      8,052       41       895       8,093       8,988         531      5/15/97    1990
Baltimore           MD       --        900      8,097      145       901       8,241       9,142         254     10/15/98    1989
Baltimore           MD       --         --     12,430      177        --      12,607      12,607         847     11/18/97    1988
College Park        MD       --      9,423     40,433      951     9,595      41,212      50,807       2,867      3/31/97    1994
Gaithersburg        MD       --      4,381     18,798      473     4,461      19,191      23,652       1,349      3/31/97    1995
Germantown          MD       --      2,305      9,890      263     2,347      10,111      12,458         717      3/31/97    1995
Oxon Hill           MD       --      3,181     13,653      357     3,240      13,951      17,191         973      3/31/97    1992
Pikesville          MD       --        589      5,305       15       589       5,320       5,909          50      8/11/99    1987
Rockville           MD       --      3,251     29,258       37     3,248      29,298      32,546       1,374       2/2/98    1986
Bloomington         MN       --      1,898     17,081    2,150     1,898      19,231      21,129         924      3/19/98    1957
Eagan               MN       --      1,424     12,822        1     1,425      12,822      14,247         574      3/19/98    1986
Mendota Heights     MN       --        533      4,795       --       533       4,795       5,328         215      3/19/98    1995
Minneapolis         MN       --        870      7,831        1       870       7,832       8,702          74       8/3/99    1987
Minneapolis         MN    1,920        295      2,658       --       295       2,658       2,953           3      12/1/99    1987
Minneapolis         MN    4,368        672      6,045       --       672       6,045       6,717           6      12/1/99    1987
Minneapolis         MN    1,201        185      1,661       --       185       1,661       1,846           2      12/1/99    1987
Minneapolis         MN    3,814        586      5,278       --       586       5,278       5,864           6      12/1/99    1987
Minneapolis         MN    6,369        979      8,814       --       979       8,814       9,793           9      12/1/99    1987
Minneapolis         MN       --        695      6,254        1       695       6,255       6,950          59       8/3/99    1986
Minneapolis         MN       --      1,891     17,021       11     1,891      17,032      18,923         124      9/30/99    1980

                                                                S-4
<PAGE>
<CAPTION>
                                                        HRPT PROPERTIES TRUST
                                                            SCHEDULE III
                                              REAL ESTATE AND ACCUMULATED DEPRECIATION
                                                          December 31, 1999
                                                       (Dollars in thousands)


                                                                      Gross Amount Carried at
                                Initial Cost to Company               Close of Period 12/31/98
                                -----------------------               ------------------------
                                                            Costs                                                         Original
                                           Buildings     Capitalized        Buildings             Accumulated             Constr-
                          Encum-              and      Subsequent to          and                 Depreciation   Date      uction
   Location        State  brances  Land     Equipment   Acquisition  Land   Equipment   Total (1)     (2)       Aquired     Date
- ----------------------------------------------------------------------------------------------------------------------------------
<S>                <C>     <C>      <C>        <C>        <C>       <C>     <C>         <C>         <C>          <C>
Plymouth            MN       --        563      5,064        4       563       5,068       5,631          48       8/3/99    1987
St Paul             MN       --        696      6,263        6       696       6,269       6,965          59       8/3/99    1987
Kansas City         MO       --      1,443      6,193      140     1,470       6,306       7,776         437      3/31/97    1995
Manchester          NH       --      2,201     19,957       --     2,201      19,957      22,158         312      5/10/99    1979
Florham Park        NJ       --      1,412     12,709       --     1,412      12,709      14,121         463      7/31/98    1979
Voorhees            NJ       --      1,053      6,625        1       998       6,681       7,679         271      5/26/98    1990
Voorhees            NJ       --        445      2,798       17       584       2,676       3,260         108      5/26/98    1990
Voorhees            NJ       --        673      4,232        1       589       4,317       4,906         175      5/26/98    1990
Albuquerque         NM       --        493      2,119      119       503       2,228       2,731         151      3/31/97    1984
Albuquerque         NM       --        441      3,970       --       441       3,970       4,411          37      8/31/99    1984
Albuquerque         NM       --        173      1,553       --       173       1,553       1,726          15      8/31/99    1984
Albuquerque         NM       --        422      3,797       --       422       3,797       4,219          36      8/31/99    1984
Albuquerque         NM       --        877      7,895       --       877       7,895       8,772          74      8/31/99    1984
Sante Fe            NM       --      1,551      6,650      150     1,578       6,773       8,351         470      3/31/97    1987
Brooklyn            NY       --        775      7,054        2       775       7,056       7,831         625       6/6/96    1971
Buffalo             NY   10,904      4,405     18,899      439     4,485      19,258      23,743       1,334      3/31/97    1994
DeWitt              NY       --        454      4,086       --       454       4,086       4,540           4     12/28/99    1987
Irondoquoit         NY       --      1,910     17,189       28     1,910      17,217      19,127         665      6/30/98    1986
Islandia            NY       --        813      7,319       --       813       7,319       8,132          99      6/11/99    1987
Melville            NY       --      3,155     28,395        4     3,155      28,399      31,554         325      7/22/99    1985
Mineola             NY       --      3,419     30,774       --     3,419      30,774      34,193         417      6/11/99    1971
New York            NY       --     44,000     66,976       35    44,000      67,011     111,011       3,756      10/1/97    1906
Syracuse            NY       --        466      4,196       --       466       4,196       4,662          31      9/24/99    1990
Syracuse            NY       --      1,788     16,096       --     1,788      16,096      17,884         218      6/29/99    1972
White Plains        NY       --      1,200     10,870      815     1,200      11,685      12,885       1,082       2/6/96    1952
Mason               OH       --      1,528     13,748        3     1,528      13,751      15,279         530      6/10/98    1994
Edmund              OK       --        251      2,254       --       251       2,254       2,505          21      8/13/99    1993
Elk City            OK       --         53        479       --        53         479         532           5      8/13/99    1993
Midwest City        OK       --        250      2,253       --       250       2,253       2,503          21      8/13/99    1993
Oklahoma City       OK       --      4,596     19,721      445     4,680      20,082      24,762       1,393      3/31/97    1992
Oklahoma City       OK       --      1,449     13,035       --     1,449      13,035      14,484         122      8/13/99    1993

                                                                S-5
<PAGE>
<CAPTION>
                                                        HRPT PROPERTIES TRUST
                                                            SCHEDULE III
                                              REAL ESTATE AND ACCUMULATED DEPRECIATION
                                                          December 31, 1999
                                                       (Dollars in thousands)


                                                                      Gross Amount Carried at
                                Initial Cost to Company               Close of Period 12/31/98
                                -----------------------               ------------------------
                                                            Costs                                                         Original
                                           Buildings     Capitalized        Buildings             Accumulated             Constr-
                          Encum-              and      Subsequent to          and                 Depreciation   Date      uction
   Location        State  brances  Land     Equipment   Acquisition  Land   Equipment   Total (1)     (2)       Aquired     Date
- ----------------------------------------------------------------------------------------------------------------------------------
<S>                <C>     <C>      <C>        <C>        <C>       <C>     <C>         <C>         <C>          <C>
Oklahoma City       OK       --        151      1,361       --       151       1,361       1,512          13      8/13/99    1993
Blue Bell           PA       --        723      6,507       --       723       6,507       7,230          47      9/14/99    1988
Blue Bell           PA       --        709      6,382       --       709       6,382       7,091          46      9/14/99    1988
Blue Bell           PA       --        268      2,414       --       268       2,414       2,682          18      9/14/99    1988
Fort Washington     PA       --        683      3,198      (21)      680       3,180       3,860         184      9/22/97    1970
Fort Washington     PA       --      1,154      7,722        3     1,154       7,725       8,879         362      1/15/98    1996
Fort Washington     PA       --      1,872      8,816        3     1,872       8,819      10,691         506      9/22/97    1960
Fort Washington     PA       --      1,184      5,559       --     1,184       5,559       6,743         319      9/22/97    1967
Greensburg          PA       --        780      7,026       --       780       7,026       7,806         271       6/3/98    1997
Horsham             PA       --        741      3,611        8       741       3,619       4,360         207      9/22/97    1983
King of Prussia     PA       --        552      2,893       --       552       2,893       3,445         137       2/2/98    1996
King of Prussia     PA       --        354      3,183       35       354       3,218       3,572         151       2/2/98    1997
King of Prussia     PA       --        634      3,251       --       634       3,251       3,885         190      9/22/97    1964
Moon Township       PA       --        502      4,519      220       502       4,739       5,241          56      8/23/99    1987
Moon Township       PA       --        410      3,688       --       410       3,688       4,098          39      8/23/99    1987
Moon Township       PA       --        612      5,507      306       612       5,813       6,425          61      8/23/99    1987
Moon Township       PA       --        489      4,403       45       489       4,448       4,937          47      8/23/99    1987
Moon Township       PA       --        555      4,995       --       555       4,995       5,550          52      8/23/99    1987
Moon Township       PA       --        202      1,814       --       202       1,814       2,016          19      8/23/99    1987
Moon Township       PA       --      6,936         --      175     7,111          --       7,111          --      8/23/99    1987
Philadelphia        PA       --        931      8,377      126       931       8,503       9,434         115      6/11/99    1989
Philadelphia        PA       --      3,462    111,946      715     3,462     112,661     116,123       5,054      3/30/98    1983
Philadelphia        PA       --     24,753    222,775      953    24,747     223,734     248,481       8,628      6/30/98    1990
Philadelphia        PA       --      7,884     71,002      304     7,883      71,307      79,190       4,469     11/13/97    1987
Pittsburgh          PA       --      1,663     14,966        5     1,663      14,971      16,634         483      9/14/98    1994
Pittsburgh          PA       --        720      9,589       44       720       9,633      10,353         451      2/27/98    1991
Plymouth            PA       --      1,412      7,415    1,641     1,413       9,055      10,468         405      1/15/98    1996
Washington          PA       --        631      5,698       64       634       5,759       6,393         152      12/1/98    1998
Lincoln             RI       --        320      7,690       --       320       7,690       8,010         481     11/13/97    1997
Memphis             TN       --      2,206     19,856      314     2,208      20,168      22,376         708      8/31/98    1985
Austin              TX       --      1,218     11,040      294     1,218      11,334      12,552         711      12/5/97    1986

                                                                S-6
<PAGE>
<CAPTION>
                                                        HRPT PROPERTIES TRUST
                                                            SCHEDULE III
                                              REAL ESTATE AND ACCUMULATED DEPRECIATION
                                                          December 31, 1999
                                                       (Dollars in thousands)


                                                                      Gross Amount Carried at
                                Initial Cost to Company               Close of Period 12/31/98
                                -----------------------               ------------------------
                                                            Costs                                                         Original
                                           Buildings     Capitalized        Buildings             Accumulated             Constr-
                          Encum-              and      Subsequent to          and                 Depreciation   Date      uction
   Location        State  brances  Land     Equipment   Acquisition  Land   Equipment   Total (1)     (2)       Aquired     Date
- ----------------------------------------------------------------------------------------------------------------------------------
<S>                <C>     <C>      <C>        <C>        <C>       <C>     <C>         <C>         <C>          <C>
Austin              TX       --      1,529     13,760        1     1,529      13,761      15,290         501      7/16/98    1993
Austin              TX       --        466      4,191      100       558       4,199       4,757         214      1/27/98    1980
Austin              TX    3,533        626      5,636       21       626       5,657       6,283          54      8/18/99    1987
Austin              TX       --      1,574     14,168       --     1,574      14,168      15,742         133       8/3/99    1982
Austin              TX       --      1,439      6,137      325     1,439       6,462       7,901         275      3/24/98    1975
Austin              TX       --      1,621     14,594      640     1,621      15,234      16,855       1,057      12/5/97    1997
Austin              TX       --      1,402     12,729        2     1,402      12,731      14,133         795      12/5/97    1997
Austin              TX       --      2,317     21,037       --     2,317      21,037      23,354       1,313      12/5/97    1996
Austin              TX       --      1,226     11,126       --     1,226      11,126      12,352         695      12/5/97    1997
Austin              TX       --      1,731     14,921       --     1,731      14,921      16,652         202      6/30/99    1975
Austin              TX       --      2,028     18,251       --     2,028      18,251      20,279          95      10/8/99    1985
Austin              TX       --        562      5,054        1       562       5,055       5,617         153     10/20/98    1997
Austin              TX       --      2,072     18,650        9     2,073      18,658      20,731         563     10/20/98    1997
Austin              TX       --      1,476     13,286        2     1,476      13,288      14,764         401     10/20/98    1997
Austin              TX       --        688      6,192       --       688       6,192       6,880          84       6/3/99    1985
Austin              TX   11,095      2,038     18,338       --     2,038      18,338      20,376          96      10/8/99    1997
Austin              TX       --      4,878     43,903      910     4,882      44,809      49,691       1,330      10/7/98    1968
Austin              TX       --        906      8,158       --       906       8,158       9,064         110      6/16/99    1999
Austin              TX       --      1,436     12,927       --     1,436      12,927      14,363         391      10/7/98    1998
Austin              TX       --        539      4,849       --       539       4,849       5,388          66      6/16/99    1999
Austin              TX       --     18,440         --    1,672    19,759         353      20,112          --      10/7/98    1968
Irving              TX       --        542      4,879       --       542       4,879       5,421         219      3/19/98    1995
Irving              TX       --        846      7,616       --       846       7,616       8,462         341      3/19/98    1995
San Antonio         TX       --        905      8,149       42       905       8,191       9,096          76       8/3/99    1989
San Antonio         TX       --        259      2,331       --       259       2,331       2,590          22       8/3/99    1986
Waco                TX       --      2,030      8,708      160     2,060       8,838      10,898         450     12/23/97    1997
Alexandria          VA       --      2,109     18,982       78     2,108      19,061      21,169         498     12/30/98    1987
Arlington           VA       --        810      7,289      136       811       7,424       8,235         257      8/26/98    1987
Fairfax             VA       --        569      5,122      156       569       5,278       5,847         417      12/4/96    1990
Fairfax             VA       --        780      7,022       --       780       7,022       7,802          51      9/29/99    1988
Fairfax             VA       --        594      5,347       --       594       5,347       5,941          39      9/29/99    1988

                                                                S-7
<PAGE>
<CAPTION>
                                                        HRPT PROPERTIES TRUST
                                                            SCHEDULE III
                                              REAL ESTATE AND ACCUMULATED DEPRECIATION
                                                          December 31, 1999
                                                       (Dollars in thousands)


                                                                      Gross Amount Carried at
                                Initial Cost to Company               Close of Period 12/31/98
                                -----------------------               ------------------------
                                                            Costs                                                         Original
                                           Buildings     Capitalized        Buildings             Accumulated             Constr-
                          Encum-              and      Subsequent to          and                 Depreciation   Date      uction
   Location        State  brances  Land     Equipment   Acquisition  Land   Equipment   Total (1)     (2)       Aquired     Date
- ----------------------------------------------------------------------------------------------------------------------------------
<S>                <C>     <C>      <C>        <C>        <C>       <C>     <C>         <C>         <C>          <C>
Falls Church        VA       --      3,456     14,828      855     3,519      15,620      19,139       1,070      3/31/97    1993
Richland            WA   12,237      3,970     17,035      426     4,042      17,389      21,431       1,204      3/31/97    1995
Falling Waters      WV       --        906      3,886      141       922       4,011       4,933         276      3/31/97    1993
Cheyenne            WY       --      1,915      8,217      185     1,950       8,367      10,317         580      3/31/97    1995
                        -------------------------------------------------------------------------------------
         Totals         $55,441   $350,523 $2,265,600  $40,221  $354,173  $2,302,171  $2,656,344    $106,859
                        =====================================================================================

</TABLE>

Reconciliation  of  the  carrying  amount  of  real  estate  and  equipment  and
accumulated depreciation at the beginning of the period:

                                      Real Estate and           Accumulated
                                          Equipment             Depreciation
                                      ---------------          --------------
Balance at January 1, 1997             $ 1,005,739              $    76,921
   Additions                               998,579                   37,619
   Disposals                               (35,295)                  (2,871)
                                       -----------              -----------
Balance at December 31, 1997             1,969,023                  111,669
   Additions                             1,004,523                   58,837
   Disposals                               (17,064)                    (695)
                                       -----------              -----------
Balance at December 31, 1998             2,956,482                  169,811
   Additions                               526,502                   70,080
   Disposals                               (94,247)                 (20,977)
   Spin-off of SNH                        (732,393)                (112,055)
                                       -----------              -----------
Balance at December 31, 1999           $ 2,656,344              $   106,859
                                       ===========              ===========

(1)      Aggregate  cost  for  federal  income  tax  purposes  is  approximately
         $2,557,428.
(2)      Depreciation is provided for on buildings and  improvements for periods
         ranging up to 40 years and on equipment up to 12 years.


                                      S-8
<PAGE>
<TABLE>
<CAPTION>
                                                        HRPT PROPERTIES TRUST
                                                             SCHEDULE IV
                                                    MORTGAGE LOANS ON REAL ESTATE
                                                          December 31, 1999
                                                       (Dollars in thousands)
                                                                                                               Principal Amount of
                                                                                  (1)                            Loans Subject to
                                  Final                                      Face Value of  Carrying Value     Delinquent Principal
Location       Interest Rate  Maturity Date   Periodic Payment Terms            Mortgage     of Mortgage           or Interest
- ----------------------------------------------------------------------------------------------------------------------------------
<S>              <C>           <C>           <C>                               <C>            <C>                       <C>
Torrance, CA      12.50%        12/31/00      Interest only, payable            $12,600        $8,660                    $--
Torrance, CA                                  monthly in arrears.
Anaheim, CA                                   $12.6 million due at maturity.

Arleta, CA         9.96%         9/30/01      Interest only, payable
                                              monthly in arrears.                 2,410         1,350                    170
                                              $2.4 million due at maturity.

Wichita, KS       10.00%        11/09/02      Principal and interest, in            964           239                     --
                                              payable monthly in arrears.
                                              $900 due at maturity.

Florence, KS      11.58%        12/31/06      Interest only, payable                500           124                     --
                                              monthly in arrears.
                                              $500 due at maturity.

                                                                                -----------------------------------------------
                                                                                $16,474        $10,373                  $170
                                                                                ===============================================
</TABLE>

Reconciliation  of the carrying amount of mortgage loans at the beginning of the
period:

Balance at January 1, 1997                                 $ 137,245
   New mortgage loans                                          1,520
   Collections of principal, net of discounts                (37,263)
                                                           ---------
Balance at December 31, 1997                                 101,502
   Collections of principal, net of discounts                (33,408)
                                                           ---------
Balance at December 31, 1998                                  68,094
   New mortgage loans                                         60,000
   Collections of principal, net of discounts                (75,188)
   Impairment of mortgage loans                               (5,000)
   Spin-off of SNH                                           (37,533)
                                                           ---------
Balance at December 31, 1999                               $  10,373
                                                           =========

    (1) Also represents cost for federal income tax purposes.

                                      S-9
<PAGE>

                                   SIGNATURES

         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
the  registrant  has duly  caused  this report to be signed on its behalf by the
undersigned, thereunto duly authorized.

                                     HRPT PROPERTIES TRUST

                                     By: /s/ John A. Mannix
                                         John A. Mannix
                                         President and Chief Operating Officer
                                         Dated:  March 30, 2000

         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
this  report  has  been  signed  below  by the  following  persons,  or by their
attorney-in-fact, in the capacities and on the dates indicated.

Signature                            Title                            Date
- ---------                            -----                            ----

/s/ John A. Mannix                   President and                March 30, 2000
John A. Mannix                        Chief Operating Officer


/s/ John C. Popeo                    Treasurer, Chief Financial   March 30, 2000
John C. Popeo                         Officer and Secretary


/s/ Frederick N. Zeytoonjian         Trustee                      March 30, 2000
Frederick N. Zeytoonjian


/s/ Patrick F. Donelan               Trustee                      March 30, 2000
Patrick F. Donelan


/s/ Justinian Manning, C.P.          Trustee                      March 30, 2000
Rev. Justinian Manning, C.P.


/s/ Gerard M. Martin                 Trustee                      March 30, 2000
Gerard M. Martin


/s/ Barry M. Portnoy                 Trustee                      March 30, 2000
Barry M. Portnoy




                                                                     Exhibit 8.1




                                                    March 30, 2000




HRPT Properties Trust
400 Centre Street
Newton, Massachusetts  02458

Ladies and Gentlemen:

         In connection with the filing by HRPT Properties Trust, a Maryland real
estate  investment trust (the "Company"),  of its Annual Report on Form 10-K for
the year  ended  December  31,  1999 (the  "Form  10-K"),  under the  Securities
Exchange Act of 1934, as amended (the "Exchange Act"), the following  opinion is
furnished to you to be filed with the  Securities and Exchange  Commission  (the
"SEC") as Exhibit 8.1 to the Form 10-K.

         We have  acted  as  counsel  for the  Company  in  connection  with the
preparation  of its  Form  10-K,  and we  have  examined  originals  or  copies,
certified or otherwise  identified to our  satisfaction,  of 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
declaration of trust,  as amended and restated,  and the by-laws of the Company,
as amended  and  restated;  and (ii) the  sections  in the  Company's  Form 10-K
captioned "Federal Income Tax  Considerations" and "ERISA Plans, Keogh Plans and
Individual  Retirement Accounts." With respect to all questions of fact on which
such opinions are based,  we have assumed the accuracy and  completeness  of and
have relied on the  information  set forth in the Form 10-K and in the documents
incorporated therein by 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


<PAGE>
HRPT Properties Trust
March 30, 2000
Page 2

"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 Annual Report 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.

         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 Annual  Report  captioned  "Federal  Income Tax  Considerations"  and "ERISA
Plans, Keogh Plans and Individual Retirement Accounts," in all material respects
are  accurate  and fairly  summarize  the Tax Laws  issues and 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.

         We hereby consent to the  incorporation of this opinion by reference as
an exhibit to the Form 10-K and to the reference of our firm therein, and to the
incorporation  of  this  opinion  by  reference  in the  Company's  Registration
Statements on Form S-3 (File Nos.  33-62135,  333-47815,  333-56051,  333-86593)
under the  Securities  Act of 1933,  as  amended  (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


                                                                    EXHIBIT 10.6

                              MANAGEMENT AGREEMENT
                  (Quarry Lake Business Center, Austin, Texas)


         THIS MANAGEMENT  AGREEMENT (this  "Agreement") is made and entered into
as of the 8 day of October,  1999 by and  between  REIT  MANAGEMENT  & RESEARCH,
INC., a Delaware  corporation  ("Managing  Agent"),  and QUARRY LAKE  PROPERTIES
TRUST, a Maryland real estate investment trust ("Owner").

         WHEREAS,  Owner is the owner of certain  premises located at 4515 Seton
Center  Parkway  in  Austin,  Texas,  upon  which are  located a certain  office
building and parking areas and facilities commonly known as Quarry Lake Business
Center (the "Managed Premises"); and

         WHEREAS,  Owner desires to retain Managing Agent, and Managing Agent is
willing to serve,  as managing agent with respect to the Managed  Premises,  all
upon the terms and subject to the conditions hereinafter set forth.

         NOW,  THEREFORE,  in  consideration  of the premises and the agreements
herein contained, Owner and Managing Agent hereby agree as follows

         1.  Employment.  Subject to the terms and  conditions  hereinafter  set
forth, Owner hereby employs Managing Agent with respect to the Managed Premises.

         2. Duties.

                  (a) Managing Agent hereby accepts such  employment as managing
         agent and agrees to devote  such time,  attention  and effort as may be
         appropriate  to operate and manage the Managed  Premises in a diligent,
         orderly and efficient  manner.  Any or all services may be performed or
         goods  purchased by Managing Agent under  arrangements  jointly with or
         for other  properties  owned or managed by Managing Agent and the costs
         shall be reasonably  apportioned.  Managing Agent may employ  personnel
         who are assigned to work  exclusively  at the Building or partly at the
         Building and other  buildings  owned and/or managed by Managing  Agent.
         The properly apportioned costs of such personnel shall be reimbursed by
         Owner, in addition to the Fee.

                  (b) Without  limitation,  Managing Agent agrees to perform the
         following specific duties:

                           (i) To seek  tenants  for  the  Managed  Premises  in
                  accordance with the rental  schedule  established by Owner and
                  to negotiate leases including renewals thereof and to lease in
                  Owner's name space on a lease form approved by the Owner, only
                  to tenants,  at rentals,  and for periods of occupancy  all as
                  are  approved  in each  case by Owner.  To employ  appropriate
                  means in order that the availability of rental space


<PAGE>

                  is made known to potential tenants,  provided,  however,  that
                  such means shall not include the  employment of brokers unless
                  otherwise  agreed by Owner.  The legal expenses of negotiating
                  such leases and leasing  such space shall be approved and paid
                  by Owner.

                           (ii) To collect  all rents and other  income from the
                  Managed Premises and to give receipts therefor, both on behalf
                  of Owner,  and deposit  such funds in such banks as are named,
                  from time to time, by Owner,  in agency accounts for and under
                  the name of Owner.  Managing  Agent shall be empowered to sign
                  disbursement checks on these accounts.

                           (iii)  To make  contracts  for and to  supervise  any
                  repairs and/or alterations to the Managed Premises,  including
                  tenant  improvements and decoration of rental space, as may be
                  approved by Owner.

                           (iv) For the Owner's  account and at its expense,  to
                  hire,  supervise and  discharge  employees as required for the
                  efficient operation and maintenance of the Managed Premises.

                           (v)  To  obtain,  at  Owner's  expense,   appropriate
                  insurance  for  the  Managed  Premises  protecting  Owner  and
                  Managing  Agent  while  acting on behalf of Owner  against all
                  normally  insurable risks relating to the Managed Premises and
                  complying with the requirements of Owner's mortgagee,  if any,
                  and, upon approval  thereof,  to cause the same to be provided
                  and  maintained  by all  tenants  with  respect to the Managed
                  Premises to the extent  required by the terms of such tenants'
                  leases.

                           (vi) To promptly  notify Owner and Owner's  insurance
                  carriers,  as  required  by the  applicable  policies,  of any
                  casualty  or  injury  to person  or  property  at the  Managed
                  Premises,   and  complete   customary  reports  in  connection
                  therewith.

                           (vii) To procure  seasonably  all  supplies and other
                  materials  necessary  for the proper  operation of the Managed
                  Premises, at Owner's expense.

                           (viii) To pay promptly  from rental  receipts,  other
                  income derived from the Managed Premises, or other monies made
                  available by Owner for such purpose, all costs incurred in the
                  operation of the Managed  Premises which are expenses of Owner
                  hereunder,  including  wages or other  payments  for  services
                  rendered,  invoices for  supplies or other items  furnished in
                  relation to the Managed  Premises,  and pay over forthwith the
                  balance of such rental receipts, income and monies to Owner or
                  as Owner  shall from time to time  direct.  (In the event that
                  the sum of the  expenses to operate and the  compensation  due
                  the Managing  Agent exceed gross  receipts in any month and no
                  excess  funds from prior months are  available  for payment of
                  such

                                        2

<PAGE>


                  excess,  Owner shall pay promptly the amount of the deficiency
                  thereof  to  Managing   Agent  upon   receipt  of   statements
                  therefor.)

                           (ix)  To  advise  Owner   promptly  of  any  material
                  developments  in the  operation of the Managed  Premises  that
                  might affect the profitable operation of the Managed Premises.

                           (x) To  establish,  in Owner's  name and with Owner's
                  approval,  reasonable rules and regulations for tenants of the
                  Managed Premises;

                           (xi) At the  direction  of  Owner  and  with  counsel
                  selected by Owner, to institute or defend, as the case may be,
                  any and all legal actions or proceedings (in the name of Owner
                  if necessary) relating to operation of the Managed Premises;

                           (xii) To  maintain  the  books and  records  of Owner
                  reflecting   the  management  and  operation  of  the  Managed
                  Premises,  making  available  for  reasonable  inspection  and
                  examination  by  Owner  or  its  representatives,  all  books,
                  records  and other  financial  data  relating  to the  Managed
                  Premises.

                           (xiii) To prepare and deliver  seasonably  to tenants
                  of the Managed  Premises such  statements of expenses or other
                  information as shall be required on the landlord's  part to be
                  delivered to such tenants for computation of rent,  additional
                  rent, or any other reason.

                           (xiv) To aid,  assist  and  cooperate  with  Owner in
                  matters  relating to taxes and  assessments and insurance loss
                  adjustments  and  notify  the  Owner  of any tax  increase  or
                  special assessments relating to the Managed Premises.

                           (xv) To provide  such  emergency  services  as may be
                  required for the  efficient  management  and  operation of the
                  Managed Premises on a 24-hour basis.

                           (xvi)  To  enter   into   contracts   for   utilities
                  (including,  without limitation,  water, fuel, electricity and
                  telephone)  and  for  building  services  (including,  without
                  limitation,  cleaning  of  windows,  common  areas and  tenant
                  space,  ash,  rubbish  and  garbage  hauling,   snow  plowing,
                  landscaping,  carpet cleaning and vermin  extermination),  and
                  for other  services as are  appropriate to first class office,
                  retail and medical office space (as applicable).

                           (xvii)   To  seek  the   lowest   competitive   price
                  commensurate  with desired  quality for all items purchased or
                  services contracted by it under this Agreement.


                                        3

<PAGE>


                           (xviii) To take such action generally consistent with
                  the provisions of this Agreement,  as Owner might with respect
                  to the Managed Premises if personally present.

         3. Authority. Owner gives to Managing Agent the authority and powers to
perform the foregoing  duties on behalf of Owner  subject,  however,  to Owner's
approval as specified.  Owner further  authorizes  Managing  Agent to incur such
reasonable expenses,  specifically contemplated in Section 2, on behalf of Owner
as are necessary in the performance of those duties.

         4. Special  Authority of Agent.  In addition to, and not in  limitation
of, the duties and authority of Managing Agent contained herein,  Managing Agent
shall perform the following duties, but only with Owner's prior approval in each
case:

                  (a)  Terminate  tenancies  and sign  and  serve in the name of
         Owner  such  notices  therefor  as  may  be  required  for  the  proper
         management of the Managed Premises.

                  (b) With counsel  selected by Owner,  and at Owner's  expense,
         institute and prosecute actions to evict tenants and recover possession
         of  rental  space,  and  recover  rents and  other  sums due;  and when
         expedient,  settle,  compromise  and release  such  actions or suits or
         reinstate such tenancies.

         5. Compensation.

                  (a) In  consideration  of the  services  to be rendered by the
         Managing  Agent  hereunder,  the Owner  agrees to pay and the  Managing
         Agent agrees to accept as its sole  compensation  (i) a management  fee
         (the "Fee") equal to three  percent (3%) of the gross  collected  rents
         actually received by Owner from the Managed Premises,  such gross rents
         to  include  all  fixed  rents,  percentage  rents,  additional  rents,
         operating  expense and tax  escalations,  and any other charges paid to
         Owner  in  connection  with  occupancy  of the  Managed  Premises,  but
         excluding any amounts collected from tenants to reimburse Owner for the
         cost of capital  improvements  or for  expenses  incurred in curing any
         tenant default or in enforcing any remedy against any tenant;  and (ii)
         a construction  supervision fee (the "Construction  Fee") in connection
         with all  interior  and  exterior  construction  renovation  or  repair
         activities at the Managed Premises,  including, without limitation, all
         tenant and capital  improvements in, on or about the Managed  Premises,
         undertaken  during  the term of this  Agreement,  other  than  ordinary
         maintenance and repair,  equal to five percent (5%) of the cost of such
         construction which shall include the costs of all related  professional
         services and the cost of general conditions.

                  (b) The Fee shall be due and payable monthly, in arrears based
         on a reasonable annual estimate or budget with an annual reconciliation
         within thirty (30) days after the end

                                        4

<PAGE>


         of such calendar  year. The  Construction  Fee shall be due and payable
         periodically,  as agreed by Managing  Agent and Owner,  based on actual
         costs incurred to date.

                  (c)  Notwithstanding  anything  herein to the contrary,  Owner
         shall reimburse Managing Agent for reasonable travel explenses incurred
         when traveling to and from the Managed  Premises  while  performing its
         duties in accordance  with this  Agreement;  provided,  however,  that,
         reasonable  travel  expenses  shall not include  expenses  incurred for
         travel to and from the Managed  Premises by personnel  assigned to work
         exclusively at the Managed Premises.

                  (d)  Managing  Agent shall also receive the amount of any lump
         sum  reimburseables  paid by tenants  of the  Managed  Premises  to the
         extent  amounts paid exceed costs  incurred by Owner for work performed
         with respect thereto.

                  (e)  Managing  Agent shall be entitled to no other  additional
         compensation,  whether in the form of commission, bonus or the like for
         its services  under this  Agreement.  Except as otherwise  specifically
         provided  herein  with  respect  to  payment  by Owner  of legal  fees,
         accounting fees, salaries,  wages, fees and charges of parties hired by
         the  Managing  Agent  on  behalf  of  Owner to  perform  operating  and
         maintenance  functions  in the  Managed  Premises,  and  the  like,  if
         Managing Agent hires third parties to perform  services  required to be
         performed  hereunder by Managing  Agent  without  additional  charge to
         Owner,  Managing  Agent  shall  (except  to the  extent  the  same  are
         reasonably  attributable  to an emergency  at the Managed  Premises) be
         responsible for the charges of such third parties.

         6.  Contracts.  Managing Agent shall not,  without the prior consent of
Owner,  enter into any contracts on behalf of Owner which extend beyond the then
current term of this Agreement.

         7. Term of  Agreement.  The term of this  Agreement  shall begin on the
date hereof and, unless sooner terminated as herein provided,  shall end on that
date which is thirty (30) days following  written notice of termination given by
either Owner or Managing Agent to the other.

         8.  Termination or Expiration.  Upon  termination or expiration of this
Agreement for any reason whatsoever,  Managing Agent shall promptly turn over to
Owner all books, papers,  funds,  records,  keys and other items relating to the
management and operation of the Managed Premises, including, without limitation,
all leases in the  possession of the Managing  Agent and shall render to Owner a
final accounting through the date of termination.

         9. Assignment of Rights and Obligations.

                  (a) Without  Owner's prior  written  consent,  Managing  Agent
         shall not sell,  transfer,  assign or otherwise dispose of or mortgage,
         hypothecate or otherwise  encumber or permit or suffer any  encumbrance
         of all or any part of its rights and obligations hereunder, and any

                                        5

<PAGE>


         transfer,  encumbrance or other  disposition of an interest herein made
         or  attempted  in  violation  of  this  paragraph  shall  be  void  and
         ineffective, and shall not be binding upon Owner.

                  (b) Owner,  without Managing  Agent's consent,  may assign its
         rights and  obligations  hereunder to any mortgagee with respect to, or
         successor owner of, the Managed Premises, but not otherwise.

                  (c) Consistent with the foregoing  paragraphs (a) and (b), the
         terms "Owner" and "Managing Agent" as used in this Agreement shall mean
         the  original   parties   hereto  and  their   respective   mortgagees,
         successors, assigns, heirs and legal representatives.

         10.  Termination for Cause.  Either party (the "Non- Defaulting Party")
may  terminate  this  Agreement  at any time in the event  that the other  party
("Defaulting  Party")  shall  fail to keep,  observe or  perform  any  covenant,
agreement, term or provision of this Agreement to be kept, observed or performed
by such Defaulting  Party, and such default shall continue for a period of seven
(7) days after written notice thereof from the Non-Defaulting  Party, or if such
default is not of a monetary  nature and cannot be cured  within  seven (7) days
then such  additional  period as shall be reasonable  provided  that  Defaulting
Party is proceeding diligently to cure such default.

         11.  Termination  for  Insolvency.  Either  party  may  terminate  this
Agreement by giving written notice to the other party if the other party:

                  (a) files a voluntary petition in bankruptcy or is adjudicated
         a  bankrupt  or  insolvent  or files any  petition  or  answer  seeking
         arrangement,  composition,  readjustment,  or similar  relief under the
         present or any  future  bankruptcy  act or any other  present or future
         applicable  federal or state law relative to bankruptcy,  insolvency or
         other relief for debtors; or

                  (b) consents to an involuntary  petition seeking  arrangement,
         composition,  readjustment,  liquidation  or similar  relief  under the
         present of any future  federal  bankruptcy  act or any other federal or
         state law  relative  to  bankruptcy,  insolvency  or other  relief  for
         debtors  or fails to  vacate  within  sixty  (60) days from the date of
         entry thereof any order approving such involuntary petition; or

                  (c) makes an assignment  for the benefit of creditors or takes
         any other similar action for the protection or benefit of creditors.

         12.  Fidelity  Bond.  Owner,  at  Owner's  expense,  may  require  that
employees of Managing Agent who handle or are  responsible  for Owner's money to
be bonded by a fidelity bond in an amount sufficient in Owner's determination to
cover any loss which may occur in the  management  and  operation of the Managed
Premises.

                                        6

<PAGE>


         13.      Indemnification.

                  (a)  Owner  agrees  to  defend,  indemnify  and hold  harmless
         Managing  Agent  from and  against  all  costs,  claims,  expenses  and
         liabilities  (including  reasonable  attorneys'  fees)  arising  out of
         Managing  Agent's  performance  of its duties in  accordance  with this
         Agreement including, without limitation, injury or damage to persons or
         property  occurring in, on or about the Managed Premises and violations
         or alleged violations of any law, ordinance, regulation or order of any
         governmental  authority  regarding  the  Managed  Premises  except  any
         injury,  damage or violation  resulting from Managing  Agent's  default
         hereunder,  or from Managing Agent's fraud, gross negligence or willful
         misconduct in the performance of its duties hereunder.

                  (b) Owner agrees that required  insurance  shall  include,  at
         Owner's expense,  public liability and workmen's compensation insurance
         upon the following terms and conditions:

                           (i)  policies  shall be so written as to protect  the
                  Agent in the manner and to the same extent as the Owner.

                           (ii) Workmen's compensation policies shall be written
                  to conform to Massachusetts  statutory coverage  requirements,
                  and shall include employee liability  insurance with limits of
                  not less than One Hundred Thousand Dollars ($100,000).

                           (iii) The public liability insurance shall be written
                  in limits of not less than One  Million  Dollars  ($1,000,000)
                  per  occurrence  for bodily  injury and Five Hundred  Thousand
                  ($500,000) Dollars per occurrence for property damage.

                           (iv) Such public  liability  insurance  shall include
                  the  standard  extensions  of  liability  coverage  as  may be
                  mutually  agreed  upon from time to time,  and shall name both
                  parties and their respective employees as additional insureds.

         14.  Notices.  Whenever notice is to be sent pursuant to this Agreement
to either party to this Agreement, it is expressly understood that same shall be
sent postage prepaid,  certified mail,  return receipt requested to either party
at 400 Centre Street,  Newton,  Massachusetts 02458, or to any such address that
either party may hereinafter designate.

         15.  Limitation  of  Liability.  No partner of Owner or Managing  Agent
shall be personally  liable  hereunder,  all such liability being limited in the
case of Owner to the  interest of Owner in the Managed  Premises and in the case
of Managing Agent, to its interest hereunder.

         16.  Modification  of  Agreement.  This  Agreement may not be modified,
altered or amended in manner except by an amendment in writing, duly executed by
the parties hereto.


                                        7

<PAGE>

         17. Independent Contractor. This Agreement is not one of general agency
by  Managing  Agent  for  Owner,  but one  with  Managing  Agent  engaged  as an
independent contractor.  Nothing in this Agreement is intended to create a joint
venture,  partnership,  tenancy-in-common  or other similar relationship between
Owner and Managing Agent for any purposes whatsoever.

         18.  Law  Governing.  This  Agreement  shall  be  governed  by  and  in
accordance with the laws of The Commonwealth of Massachusetts.

         19.  Nature  of  Owner's   Obligations.   THE   DECLARATION   OF  TRUST
ESTABLISHING  OWNER, A COPY OF WHICH,  TOGETHER WITH ALL AMENDMENTS THERETO (THE
"DECLARATION"), IS DULY FILED IN THE OFFICE OF THE DEPARTMENT OF ASSESSMENTS AND
TAXATION  OF THE  STATE  OF  MARYLAND,  PROVIDES  THAT  THE  NAME  "QUARRY  LAKE
PROPERTIES  TRUST" REFERS TO THE TRUSTEES UNDER THE DECLARATION  COLLECTIVELY AS
TRUSTEES,  BUT NOT  INDIVIDUALLY  OR PERSONALLY,  AND THAT NO TRUSTEE,  OFFICER,
SHAREHOLDER, EMPLOYEE OR AGENT OF OWNER SHALL BE HELD TO ANY PERSONAL LIABILITY,
JOINTLY OR SEVERALLY,  FOR ANY OBLIGATION OF, OR CLAIM AGAINST,  OWNER. MANAGING
AGENT AND ALL OTHER PERSONS  DEALING WITH OWNER,  IN ANY WAY, SHALL LOOK ONLY TO
THE  ASSETS  OF  OWNER  FOR THE  PAYMENT  OF ANY SUM OR THE  PERFORMANCE  OF ANY
OBLIGATION,  AND NO TRUSTEE,  OFFICER,  SHAREHOLDER,  EMPLOYEE OR AGENT OF OWNER
SHALL HAVE ANY  LIABILITY  HEREUNDER OR OTHERWISE  FOR ANY ACT OR  OBLIGATION OF
OWNER.

         Executed as a sealed instrument.



                                          MANAGING AGENT:

                                          REIT MANAGEMENT & RESEARCH, INC.


                                          By: /s/ David M. Lepore
                                          Name:  David M. Lepore
                                          Title: Vice President


                                          OWNER:

                                          QUARRY LAKE PROPERTIES TRUST


                                          By: /s/ John A. Mannix
                                          Name:  John A. Mannix
                                          Title: President

                                   8

                                      S-10
<PAGE>
                               SCHEDULE TO EXHIBIT 10.6



         Pursuant to Instruction 2 to Item 601 of Regulation  S-K, the following
Management  Agreements,  which  are  substantially  identical  in  all  material
respects to the Management  Agreement for property  located at 4515 Seton Center
Parkway,  Austin, Texas, are omitted. The following list sets forth the material
differences  in the  property  name,  street  address,  date  of the  Management
Agreement, and owner from the Management Agreement filed herewith:

<TABLE>
<CAPTION>

                                      Street Address of
         Property Name                     Property                    Date                       Owner
- -----------------------------------------------------------------------------------------------------------------
<S>                             <C>                             <C>                  <C>

Rosedale Corporate Plaza         812 San Antonio Street          December 1, 1999     Rosedale Properties Limited
                                 Austin Texas                                         Liability Company

Park at San Antonio              Unit 1 at 2685 Long Lake         August 18, 1999     Park San Antonio Properties
                                 Road, Unit 2 at 2675 Long                            Trust
                                 Lake Road, Unit 3 at 2665
                                 Long Lake Road, Unit 4 at
                                 2655 Long Lake Road, and
                                 Unit 5 at 2645 Long Lake
                                 Road in Rosedale, Minnesoata

</TABLE>

In addition,  the Management Agreement for the Rosedale Corporate Plaza does not
have a Section 19.

In addition,  the Management  Agreement for the Park at San Antonio Company does
not have a Section 2(c).



                                                                       EXECUTION

                              HRPT PROPERTIES TRUST
              FIRST AMENDMENT AND LIMITED WAIVER TO LOAN AGREEMENT


         This  FIRST  AMENDMENT  AND  LIMITED  WAIVER  TO LOAN  AGREEMENT  (this
"Amendment") is dated as of February 12, 1999 and entered into by and among HRPT
PROPERTIES  TRUST, a Maryland real estate  investment  trust,  formerly known as
Health and Retirement Properties Trust ("Borrower"),  the financial institutions
listed on the signature  pages hereof  ("Lenders"),  DRESDNER  KLEINWORT  BENSON
NORTH  AMERICA  LLC, a limited  liability  company  organized  under the laws of
Delaware,   as  agent  for  Lenders   ("Agent")  and  Fleet  National  Bank,  as
Administrative Agent  ("Administrative  Agent"),  and, for purposes of Section 6
hereof,  the Guarantors  listed on the signature pages hereof,  and is made with
reference to that certain Fourth Amended and Restated Loan Agreement dated as of
April 2, 1998 (the "Loan  Agreement") by and among  Borrowers,  Lenders,  Agent,
Administrative  Agent and certain of Guarantors.  Capitalized  terms used herein
without  definition shall have the same meanings herein as set forth in the Loan
Agreement.

         WHEREAS, Borrower intends to focus its investments on office properties
and has  recently  formed  Senior  Housing  Properties  Trust,  a Maryland  real
investment  trust and a  wholly-owned  direct  subsidiary  of Borrower  ("Senior
Housing") with the intention of  transferring  its senior housing  properties to
Senior Housing and its Subsidiaries and,  subsequent to such transfer,  spinning
off  Senior  Housing  to the  existing  common  shareholders  of  Borrower  (the
"Spin-Off"); and

         WHEREAS,  Borrower,  Lenders, Agent and Administrative Agent desire (i)
whether or not the  Spin-Off  is  consummated,  to amend the Loan  Agreement  to
remove the  restriction  from Section 6.8 of the Loan  Agreement  which provides
that the  aggregate  amount of  Indebtedness  of Borrower  and its  Subsidiaries
cannot exceed the Aggregate  Allowed Value of Eligible  Properties  and Eligible
Mortgages  that consist of interests in facilities  that are used for healthcare
or related  services,  and (ii) to waive the provisions of the Loan Agreement to
the extent required to permit the Spin-Off and certain related transactions.

         NOW,  THEREFORE,  in  consideration of the premises and the agreements,
provisions and covenants herein contained, the parties hereto agree as follows:

Section 1.        AMENDMENTS TO THE LOAN AGREEMENT.

1.1 Amendment to Section 1: Definitions.  The definition of "Tangible Net Worth"
set forth in Section 1.1 of the Loan  Agreement  is hereby  amended by inserting
the words  "or of Senior  Housing  Properties  Trust,  a  Maryland  real  estate
investment  trust,"  immediately after the reference to "Hospitality  Properties
Trust" in clause (v) of the exclusions thereto.

1.2 Amendment to Section 6: Negative Covenant.  Clause (a) of Section 6.8 of the
Loan  Agreement is hereby amended by deleting the words "the lesser of (x)" from
the sixth  line  thereof  and the words "or (y) 100% of the  aggregated  Allowed
Value of Eligible Properties and


                                                                       EXECUTION
<PAGE>

Eligible  Mortgages  that  consist of interest in  facilities  that are used for
healthcare  or  related  services"  from the  seventh,  eighth  and ninth  lines
thereof.

Section 2.        LIMITED WAIVER.

2.1 Waiver. Subject to the terms and conditions set forth herein and in reliance
on the  representations  and warranties of Borrower  herein  contained,  Lenders
hereby waive compliance with the provisions of Sections 6.3(a),  6.3(b)(iii) and
6.5 of the Loan  Agreement to the extent,  and only to the extent,  necessary to
permit  Borrower to (i)  contribute,  or permit its  Subsidiaries to contribute,
some  or  all  of its  senior  housing  properties  (including  senior  housing,
congregate communities, assisted living properties and nursing homes) to certain
newly-created  Subsidiaries,  (ii)  contribute  the  stock  of the  Subsidiaries
described in the foregoing  clauses to Senior Housing  immediately  prior to the
Spin-Off,  and  (iii)  distribute  some or all of the  common  shares  of Senior
Housing to its common shareholders as an extraordinary dividend;  provided, that
(x) the  proceeds  of any  promissory  note or any cash  received by Borrower in
consideration of any of the transactions  described in the foregoing  clauses or
the Spin-Off shall immediately be applied to the prepayment of the Loans and (y)
the distribution described in clause (iii) shall otherwise be made in compliance
with the provisions of Section 6.2.

2.2 Limitation of Waiver.  Without  limiting the generality of the provisions of
subsection 10.4 and 10.6 of the Loan Agreement, the waiver set forth above shall
be limited  precisely as written and nothing in this  Amendment  shall be deemed
to:

                  (a) constitute a waiver of compliance by Borrower with respect
         to (i) sections  6.3(a),  6.3(b)(iii)  and 6.5 of the Loan Agreement in
         any other  instance or (ii) any other term,  provision  or condition of
         the Loan  Agreement or any other  instrument  or agreement  referred to
         therein  (whether  in  connection  with the  Spin-Off  and the  related
         transactions or otherwise); or

                  (b) prejudice  any right or remedy that Agent,  Administrative
         Agent or Lender may now have (except to the extent such right or remedy
         was based  upon  existing  defaults  that will not exist  after  giving
         effect  to this  Amendment)  or may  have  in the  future  under  or in
         connection with the Loan Agreement or any other instrument or agreement
         referred to therein.

Section 3.        RELEASE.

         Upon  the  consummation  of  the  Spin-Off,   Senior  Housing  and  its
Subsidiaries  shall be released from the guarantee set forth in Section 9 of the
Loan Agreement to which they are, or shall upon their creation become, party.

Section 4.        CONDITION TO EFFECTIVENESS.

         Sections 1, 2 and 3 of this Amendment shall become  effective only upon
the date on or before  June 30,  1999 (the  "Effective  Date") of the payment by
Borrower to Agent,  for distribution to each Lender party to this Amendment (or,
if applicable, its successors and


                                       2                               EXECUTION
<PAGE>

assigns), a non-refundable fee in immediately available funds in an amount equal
to 0.30% of such Lender's Commitment, payment of which may be made at Borrower's
sole election.

Section 5.        BORROWER'S REPRESENTATIONS AND WARRANTIES.

         In order to induce  Lenders to enter into this  Amendment  and to amend
the Loan  Agreement  in the manner  provided  herein,  Borrower  represents  and
warrants to each  Lender that the  following  statements  are true,  correct and
complete:

         A. Trust or Corporate Power and Authority.  Borrower and each Guarantor
has all  requisite  trust or  corporate  power and  authority to enter into this
Amendment  and to carry out the  transactions  contemplated  by, and perform its
respective  obligations  under,  the Loan Agreement as amended by this Amendment
(the "Amended Agreement").

         B.  Authorization  of  Agreements.  The  execution and delivery of this
Amendment and the performance of the Amended Agreement have been duly authorized
by all  necessary  trust  or  corporate  action  on the  part  of  Borrower  and
Guarantors.

         C. No Conflict.  The execution and delivery by Borrower and  Guarantors
of this Amendment and the  performance by Borrower and Guarantors of the Amended
Agreement  do not and  will  not (i)  violate  any  provision  of any law or any
governmental   rule  or  regulation   applicable  to  Borrower  or  any  of  its
Subsidiaries,   the  Declaration  or  Trust,  or  Certificates  or  Articles  of
Incorporation  or Bylaws of  Borrower or any of its  Subsidiaries  or any order,
judgment  or decree  of any  court or other  agency  of  government  binding  on
Borrower or any of its  Subsidiaries,  (ii) conflict with, result in a breach of
or  constitute  (with due  notice or lapse of time or both) a default  under any
contractual  obligation of Borrower or any of its Subsidiaries,  (iii) result in
or require the creation or imposition of any Lien upon any of the  properties or
assets of Borrower or any of its  Subsidiaries,  or (iv) require any approval of
stockholders  or any  approval  or consent of any Person  under any  contractual
obligation of Borrower or any of its Subsidiaries,  except for such approvals or
consents which will be obtained on or before the date hereof.

         D.  Governmental  Consents.  The execution and delivery by Borrower and
Guarantors of this  Amendment and the  performance by Borrower and Guarantors of
the Amended Agreement do not and will not require any registration with, consent
or approval of, or notice to, or other action to, with or by, any federal, state
or other governmental authority or regulatory body.

         E. Binding  Obligation.  This Amendment and the Amended  Agreement have
been duly  executed and  delivered by Borrower  and each  Guarantor  and are the
legally  valid and  binding  obligations  of  Borrower  and  Guarantors  against
Borrower and each Guarantor in accordance with their respective terms, except as
may be limited by bankruptcy, insolvency, reorganization,  moratorium or similar
laws  relating  to or  limited  creditors'  rights  generally  or  by  equitable
principles relating to enforceability.



                                       3                               EXECUTION
<PAGE>

         F. Incorporation of Representations and Warranties From Loan Agreement.
The representations and warranties  contained in Section 3 of the Loan Agreement
are and will be true, correct and complete in all material respects on and as of
the date  hereof and to the same  extent as though  made on and as of that date,
except to the extent such representations and warranties  specifically relate to
an earlier  date,  in which case they were true,  correct  and  complete  in all
material respects on and as of such earlier date.

         G. Absence of Default.  No event has occurred and is continuing or will
result from the consummation of the transactions  contemplated by this Amendment
that would constitute a Default or an Event of Default.

Section 6.        ACKNOWLEDGEMENT AND CONSENT

         Each Guarantor hereby  acknowledges  that it has reviewed the terms and
provisions  of the  Loan  Agreement  and  this  Amendment  and  consents  to the
amendment  of the Loan  Agreement  effected  pursuant  to this  Amendment.  Each
Guarantor  hereby  confirms  that it will  continue  to  guaranty to the fullest
extent  possible the full and  punctual  payment of the  principal  and interest
(including, without limitation, interest which, but for the filing of a petition
in bankruptcy with respect to Borrower would accrue hereunder) on all Loans made
to Borrower and the full and punctual  payment of all other  amounts  payable by
Borrower under the Loan Agreement  (including  amounts that would become due but
for the  operation  of the  automatic  stay under  Section  362(e) of the United
States  Bankruptcy Code) subject to the limitations set forth in Section 9(a) of
the Loan Agreement.

         Each Guarantor  acknowledges  and agrees that (i)  notwithstanding  the
conditions to effectiveness  set forth in this Amendment,  such Guarantor is not
required  by the terms of the Loan  Agreement  or any  other  Loan  Document  to
consent  to the  amendments  to the Loan  Agreement  effected  pursuant  to this
Amendment and (ii) nothing in the Loan  Agreement,  this  Amendment or any other
Loan  Document  shall be deemed to require the consent of such  Guarantor to any
future amendments to the Loan Agreement.

Section 7.        MISCELLANEOUS

7.1      Reference  to and  Effect  on the Loan  Agreement  and the  Other  Loan
         Documents.

         A.  On and  after  the  Effective  Date,  each  reference  in the  Loan
Agreement to "this Agreement,"  "hereunder,"  "hereof," "herein" or words of the
like import  referring to the Loan  Agreement,  and each  reference in the other
Loan Documents to the "Loan Agreement," "thereunder," "thereof" or words of like
import  referring  to the Loan  Agreement  shall mean and be a reference  to the
Amended Agreement.

         B. Except as specifically amended or waived by this Amendment, the Loan
Agreement and the other Loan Documents shall remain in full force and effect and
are hereby ratified and confirmed.



                                       4                               EXECUTION
<PAGE>

         C. The execution, delivery and performance of this Amendment shall not,
except as expressly provided herein, constitute a waiver of any provision of, or
operate as a waiver of any right,  power or remedy of Agent or any Lender under,
the Loan Agreement or any of the other Loan Documents.

7.2 Fees and Expenses.  Borrower  acknowledges that all costs, fees and expenses
as described in subsection 10.7 of the Loan Agreement  incurred by Agent and its
counsel  with  respect to this  Amendment  and the  documents  and  transactions
contemplated hereby shall be for the account of Borrower.

7.3 Headings.  Sections and  subsection  heading in this  Amendment are included
herein for convenience of reference only and shall not constitute a part of this
amendment for any other purpose or be given any substantive effect.

7.4 Applicable Law. THIS AMENDMENT AND THE RIGHTS AND OBLIGATIONS OF THE PARTIES
HEREUNDER  SHALL  BE  GOVERNED  BY,  AND  SHALL BE  CONSTRUED  AND  ENFORCED  IN
ACCORDANCE  WITH, THE INTERNAL LAWS OF THE SATE OF NEW YORK  (INCLUDING  WITHOUT
LIMITATION SECTION 5-1401 OF THE GENERAL  OBLIGATIONS OF LAW OF THE STATE OF NEW
YORK), WITHOUT REGARD TO CONFLICTS OF LAWS PRINCIPLES.

7.5 Counterparts; Effectiveness. This Amendment may be executed in any number of
counterparts and by different parties hereto in separate  counterparts,  each of
which when so executed and delivered  shall be deemed an original,  but all such
counterparts  together  shall  constitute  but  one  and  the  same  instrument;
signature pages may be detached from multiple separate counterparts and attached
to a single  counterpart so that all signature pages are physically  attached to
the same document.  This  Amendment  (other than the provisions of Sections 1, 2
and 3 hereof,  the effectiveness of which is governed by Section 4 hereof) shall
become  effective  upon (i) the execution of a  counterpart  hereof by Borrower,
Agent and  Majority  Lenders,  and receipt by  Borrower  and Agent of written or
telephonic  notification of such execution and authorization of delivery thereof
and (ii) the payment by Borrower to  Administrative  Agent,  for distribution to
the Lenders that have executed this Amendment, of a non-refundable amendment fee
in immediately available funds in an amount equal to 0.20% of each such Lender's
Commitment.

7.6 Non-Liability of Trustees.  THE DECLARATION OF TRUST ESTABLISHING  BORROWER,
DATED  OCTOBER 9, 1986, A COPY OF WHICH,  TOGETHER WITH ALL  AMENDMENTS  THERETO
(THE  "DECLARATION"),  IS DULY  FILED WITH THE  DEPARTMENT  OF  ASSESSMENTS  AND
TAXATION  OF THE STATE OF  MARYLAND,  PROVIDES  THAT THE NAME  "HRPT  PROPERTIES
TRUST" REFERS TO THE TRUSTEES UNDER THE  DECLARATION  COLLECTIVELY  AS TRUSTEES,
BUT NOT INDIVIDUALLY OR PERSONALLY,  AND THAT NO TRUSTEE, OFFICER,  SHAREHOLDER,
EMPLOYEE OR AGENT OF BORROWER SHALL BE HELD TO ANY PERSONAL  LIABILITY,  JOINTLY
OR SEVERALLY,  FOR ANY OBLIGATION OF, OR CLAIM  AGAINST,  BORROWER.  ALL PERSONS
DEALING WITH BORROWER, IN ANY



                                       5                               EXECUTION
<PAGE>

WAY, SHALL LOOK ONLY TO THE ASSETS OF BORROWER FOR THE PAYMENT OF ANY SUM OR THE
PERFORMANCE OF ANY OBLIGATION.




                                       6                               EXECUTION
<PAGE>

         IN WITNESS WHEREOF, the parties hereto have caused this amendment to be
duly  executed  and  delivered  by  their  respective  officers  thereunto  duly
authorized as of the date first written above.

                                        HRPT PROPERTIES TRUST

                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer


                                        DRESDNER KLEINWORT BENSON
                                        NORTH AMERICA, LLC, as Agent


                                        By: /s/ Ronald K. Rapp
                                           Name:  Ronald K. Rapp
                                           Title: Vice Prsident


                                        By: /s/ Craig D. Meisner
                                           Name:  Craig D. Meisner
                                           Title: Vice President


                                        DRESDNER BANK AG, New York Branch
                                        and Grand Cayman Branch, as a Lender


                                        By: /s/ Andrew P. Nesi
                                           Name:  Andrew P. Nesi
                                           Title: Vice President


                                        By: /s/ Charles M. O'Shea
                                           Name:  Charles M. O'Shea
                                           Title: Vice President


                                        FLEET NATIONAL BANK,
                                        as Administrative Agent and as a Lender


                                        By: /s/ Ginger Stolzenthaler
                                           Name:  G. Stolzenthaler
                                           Title: SVP




                                       S-1                             EXECUTION
<PAGE>

                                        ABBEY NATIONAL TREASURY SERVICES PLC,
                                        as a Lender


                                        By: /s/
                                           Name:
                                           Title:


                                        ARAB AMERICAN BANK,
                                        as a Lender


                                        By: /s/ Carmelo L. Foti
                                           Name:  Carmelo L. Foti
                                           Title: Vice President


                                        By: /s/ William G. Reynolds
                                           Name:  William G. Reynolds
                                           Title: Vice President


                                        BANKBOSTON, N.A.
                                        as a Lender


                                        By: /s/ William M. Cotter
                                           Name:  William M. Cotter
                                           Title: Director


                                        BANK HAPOALIM B.M.,
                                        as a Lender


                                        By: /s/ Amram Lador
                                           Name:  Amram (Rami) Lador
                                           Title: First V.P. & Branch Manager
                                                  Bank Hapoalim
                                                  Philadelphia Branch

                                        By: /s/ Ellen S. Frank
                                           Name:  Ellen S. Frank
                                           Title: Vice President


                                       S-2                             EXECUTION
<PAGE>


                                        BANK OF IRELAND,
                                        as a Lender


                                        By: /s/ Catherine Strecker
                                           Name:  Catherine Strecker
                                           Title: Manager


                                        BANK OF MONTREAL, as a Lender


                                        By: /s/ L.A. Durning
                                           Name:  L.A. Durning
                                           Title: Portfolio Manager


                                        BANQUE NATIONALE DE PARIS, as a Lender


                                        By: /s/ Alan W. Barkley
                                           Name:  Alan W. Barkley
                                           Title: Vice President


                                        By: /s/ Mark McElwain
                                           Name:  Mark McElwain
                                           Title: Assistant Vice President


                                        CIBC INC., as a Lender


                                        By: /s/ Gerald Girardi
                                           Name:  Gerald Girardi
                                           Title: Executive Director
                                                  CIBC Oppenheimer Corp.,
                                                    AS AGENT


                                        COMERICA BANK, as a Lender


                                        By: /s/ Leslie Vogel
                                           Name:  Leslie Vogel
                                           Title: Account Officer



                                      S-3                              EXECUTION
<PAGE>



                                        CREDIT LYONNAIS New York Branch,
                                        as a Lender


                                        By: /s/ John Oberle
                                           Name:  John Oberle
                                           Title: Vice President


                                        DG BANK, DEUTSCHE GENOSSENSCHAFTSBANK AG
                                        Cayman Island Branch, as a Lender


                                        By: /s/ Linda J. O'Connell
                                           Name:  Linda J. O'Connell
                                           Title: Vice President


                                        By: /s/ Karen A. Brinkman
                                           Name:  Karen A. Brinkman
                                           Title: Vice President


                                        FIRST UNION NATIONAL BANK,
                                        as a Lender


                                        By: /s/ Valerie A. Cline
                                           Name:  Valerie A. Cline
                                           Title: Director


                                        KEY CORPORATE CAPITAL INC.,
                                        as a Lender


                                        By: /s/ Jeffrey Kalinowski
                                           Name:  Jeffrey Kalinowski
                                           Title: Officer


                                       S-4                             EXECUTION
<PAGE>



                                        RIGGS BANK N.A.,
                                        as a Lender


                                        By: /s/ Craig A. Havard
                                           Name:  Craig A. Havard
                                           Title: Vice President


                                        RZB FINANCE LLC,
                                        as a Lender


                                        By: /s/ John A. Valiska
                                           Name:  John A. Valiska
                                           Title: Vice President


                                        By: /s/ Dieter Beintrexler
                                           Name:  Dieter Beintrexler
                                           Title: President


                                        SOCIETE GENERALE,
                                        as a Lender


                                        By: /s/ Sedare Coradin
                                           Name:  Sedare Coradin
                                           Title: Vice President


                                        By: /s/ Jerry Parisi
                                           Name:  Jerry Parisi
                                           Title: Director


                                        THE BANK OF NEW YORK,
                                        as a Lender


                                        By: /s/ Thomas C. McCrohan
                                           Name:  Thomas C. McCrohan
                                           Title: Vice President



                                      S-5                              EXECUTION
<PAGE>



                                        THE BANK OF NOVA SCOTIA,
                                        New York Agency, as a Lender


                                        By: /s/ Christopher I. Grant
                                           Name:  Christopher I. Grant
                                           Title: Senior Relationship Manager


                                        THE LONG-TERM CREDIT BANK OF
                                        JAPAN, LTD.,  New York Branch,
                                        as a Lender


                                        By: /s/ Junichi Ebihara
                                           Name:  Junichi Ebihara
                                           Title: Deputy General Manager


                                        VIA BANQUE, as a Lender


                                        By: /s/
                                           Name:
                                           Title:


                                        By:
                                           Name:
                                           Title:


                                      S-6                              EXECUTION
<PAGE>



For the purposes of Section 7:          HEALTH AND RETIREMENT
                                        PROPERTIES INTERNATIONAL, INC.


                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer


                                        CAUSEWAY HOLDINGS INC.


                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer


                                        CHURCH CREEK CORPORATION


                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer


                                        HUB PROPERTIES TRUST


                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer


                                        HUB ACQUISITION TRUST


                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer


                                        HUB LA PROPERTIES TRUST


                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer



                                      S-7                              EXECUTION
<PAGE>



                                        HUB RI PROPERTIES TRUST


                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer


                                        HUB WOODMONT INVESTMENT TRUST


                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer


                                        HUB REALTY FUNDING, INC.


                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer


                                        HUB MANAGEMENT, INC.


                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer


                                        HUB REALTY COLLEGE PARK, INC.


                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer


                                        INDEMNITY COLLECTION CORPORATION


                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer



                                      S-8                              EXECUTION
<PAGE>



                                        HUB REALTY KANSAS CITY, INC.


                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer


                                        HUB REALTY GOLDEN, INC.


                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer


                                        HUB REALTY COLLEGE PARK I, LLC, By HUB
                                        Management, Inc., its Manager


                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer


                                        HUB LA LIMITED PARTNERSHIP


                                        BY HUB LA Prop Trust, its general
                                        partner


                                              By: /s/ Ajay Saini
                                                 Name:  Ajay Saini
                                                 Title: Treasurer


                                        HUB WOODMONT LLC, By HUB Woodmont
                                        Investment Trust, its Manager


                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer



                                      S-9                              EXECUTION
<PAGE>



                                        1735 MARKET STREET PROPERTIES TRUST


                                        By: /s/ David J. Hegarty
                                           Name:  David J. Hegarty
                                           Title: Vice President


                                        NINE PENN CENTER ASSOCIATES, L.P.


                                        BY NINE PENN CENTER PROPERTIES TRUST,
                                        its general partner


                                              By: /s/ David J. Hegarty
                                                 Name:  David J. Hegarty
                                                 Title: Vice President


                                        NINE PENN CENTER PROPERTIES TRUST


                                        By: /s/ David J. Hegarty
                                           Name:  David J. Hegarty
                                           Title: Vice President


                                        RESEARCH PARK PROPERTIES TRUST


                                        By: /s/ David J. Hegarty
                                           Name:  David J. Hegarty
                                           Title: Vice President



                                      S-10                             EXECUTION
<PAGE>



                                        SENIOR HOUSING PROPERTIES TRUST


                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer


                                        SPTMRT PROPERTIES TRUST


                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer


                                        SPTIHS PROPERTIES TRUST


                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer


                                        SPTSUN PROPERTIES TRUST


                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer


                                        SPTMISC PROPERTIES TRUST


                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer


                                        SPTMNR PROPERTIES TRUST


                                        By: /s/ Ajay Saini
                                           Name:  Ajay Saini
                                           Title: Treasurer



                                      S-11                             EXECUTION
<PAGE>



                                        SPTBROOK PROPERTIES TRUST


                                        By: /s/
                                           Name:
                                           Title:


                                        SPTGEN PROPERTIES TRUST


                                        By: /s/
                                           Name:
                                           Title:







<TABLE>
<CAPTION>
                                                                                    Exhibit 12.1

                                      HRPT PROPERTIES TRUST
                        COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
                          (Dollars in thousands, except ratio amounts)


                                                         Year Ended December 31,
                                           ----------------------------------------------------
                                              1999      1998       1997       1996       1995
                                           ----------------------------------------------------
<S>                                       <C>        <C>        <C>        <C>        <C>
Income before gain on sale of properties
  and extraordinary item                   $105,555   $146,656   $112,204   $ 77,164   $ 61,760
Fixed charges                                90,772     66,253     38,564     23,279     26,218
                                           --------   --------   --------   --------   --------
Adjusted Earnings                          $196,327   $212,909   $150,768   $100,443   $ 87,978
                                           ========   ========   ========   ========   ========

Fixed Charges:
Interest expense                           $ 87,470   $ 64,326   $ 36,766   $ 22,545   $ 24,274
Amortization of deferred financing costs      3,302      1,927      1,798        734      1,944
                                           --------   --------   --------   --------   --------
Total Fixed Charges                        $ 90,772   $ 66,253   $ 38,564   $ 23,279   $ 26,218
                                           ========   ========   ========   ========   ========

Ratio of Earnings to Fixed Charges             2.2x       3.2x       3.9x       4.3x       3.4x
                                           ========   ========   ========   ========   ========


</TABLE>


                                                                    Exhibit 21.1

                              HRPT PROPERTIES TRUST
                         SUBSIDIARIES OF THE REGISTRANT



1735 Market Street Properties Trust - (Maryland)
Causeway Holdings, Inc. - (Massachusetts)
Health and Retirement Properties International, Inc. - (Delaware)
Hub Acquisition Trust  - (Maryland)
Hub LA  Limited  Partnership  (98%)  -  (Delaware)
Hub LA  Properties  Trust  -(Maryland)
Hub Management,  Inc. - (Delaware)
Hub Properties  Trust - (Maryland)
Hub  Realty  Buffalo,  Inc.  -  (Delaware)
Realty  College  Park I,  LLC -(Maryland)
Hub Realty College Park, Inc. - (Delaware)
Hub Realty Funding,  Inc.-(Delaware)
Hub Realty Golden,  Inc. - (Delaware)
Hub Realty Kansas City,  Inc. -(Delaware)
Hub Realty  Richland,  Inc. - (Delaware)
Hub RI Properties  Trust -(Maryland)
Hub  Woodmont  Investment  Trust - (Maryland)
Hub Woodmont  Limited Liability  Company - (Delaware)
Indemnity  Collection  Corporation - (Delaware)
Nine Penn Center Associates,  L.P. - (Pennsylvania)
Nine Penn Center Properties Trust - (Maryland)
Research Park Properties Trust - (Maryland)
Park San Antonio Properties Trust - (Maryland)
Rosedale  Properties Trust - (Maryland)
Rosedale Properties,  Inc. - (Delaware)
Rosedale  Properties Limited Liability Company -(Delaware)
Quarry Lake Properties Trust - (Maryland)

                                                                    Exhibit 23.1





                         Consent of Independent Auditors



We consent to the incorporation by reference in  Post-Effective  Amendment No. 1
to the  Registration  Statement (Form S-3 No. 33-62135) of HRPT Properties Trust
and in the  related  Prospectus;  in the  Registration  Statement  (Form S-3 No.
333-47815)  of HRPT  Properties  Trust  and in the  related  Prospectus;  in the
Registration  Statement (Form S-3 No. 333-56051) and in the related  Prospectus;
and in the  Registration  Statement (Form S-3 No.  333-86593) of HRPT Properties
Trust and in the related  Prospectus  of our report dated March 17,  2000,  with
respect  to  the  consolidated   financial  statements  and  schedules  of  HRPT
Properties  Trust  included in this Annual Report (Form 10-K) for the year ended
December 31, 1999.


                                                    /s/ Ernst & Young LLP

                                                    ERNST & YOUNG LLP

Boston, Massachusetts
March 28, 2000



                                                                    Exhibit 23.2

                    Consent of Independent Public Accountants



         As   independent   public   accountants,   we  hereby  consent  to  the
incorporation  by reference of our report dated January 14, 2000 on  Hospitality
Properties Trust into HRPT Properties  Trust's Form 10-K and into the previously
filed  Registration  Statement  File No.'s  333-56051,  333-47815,  33-62135 and
333-86593.


                                                  /s/ Arthur Andersen LLP

                                                  ARTHUR ANDERSEN LLP


Vienna, Virginia
March 29, 2000

<TABLE> <S> <C>

<ARTICLE>                     5
<MULTIPLIER>                                  1,000

<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                              DEC-31-1999
<PERIOD-START>                                 JAN-01-1999
<PERIOD-END>                                   DEC-31-1999
<CASH>                                         13,206
<SECURITIES>                                   0
<RECEIVABLES>                                  10,373
<ALLOWANCES>                                   0
<INVENTORY>                                    0
<CURRENT-ASSETS>                               0
<PP&E>                                         2,656,344
<DEPRECIATION>                                 106,859
<TOTAL-ASSETS>                                 2,953,308
<CURRENT-LIABILITIES>                          0
<BONDS>                                        1,349,890
                          0
                                    0
<COMMON>                                       1,319
<OTHER-SE>                                     1,521,148
<TOTAL-LIABILITY-AND-EQUITY>                   2,953,308
<SALES>                                        0
<TOTAL-REVENUES>                               427,541
<CGS>                                          0
<TOTAL-COSTS>                                  319,660
<OTHER-EXPENSES>                               0
<LOSS-PROVISION>                               0
<INTEREST-EXPENSE>                             87,470
<INCOME-PRETAX>                                113,862
<INCOME-TAX>                                   0
<INCOME-CONTINUING>                            113,862
<DISCONTINUED>                                 0
<EXTRAORDINARY>                                0
<CHANGES>                                      0
<NET-INCOME>                                   113,862
<EPS-BASIC>                                    0.86
<EPS-DILUTED>                                  0.86



</TABLE>


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