AGREEMENT AND PLAN OF MERGER


     This Agreement and Plan of Merger  (Agreement) is entered into effective as
of  October  1, 1996,  by and among  HEALTHCARE  REALTY  TRUST  INCORPORATED,  a
Maryland  corporation  (HRT),  HRT OF  ROANOKE,  INC.,  a  Virginia  corporation
(Acquisition Sub), and LEWIS-GALE BUILDING  CORPORATION,  a Virginia corporation
(the Company).  

                                   RECITALS 

     A. The Boards of Directors of HRT,  Acquisition Sub and the Company have  
approved the merger of the Company  into  Acquisition  Sub, in accordance with 
the Virginia Stock Corporation Act and applicable  provisions of the statutes 
of the Commonwealth of Virginia which permit the Merger, and the transactions 
contemplated by this Agreement. 

     B. For federal income tax purposes, it is intended that the Merger qualify
as a reorganization within the meaning of Section  368(a) of the Internal  
Revenue Code of 1986, as amended.  

     In order to consummate the Merger, HRT, Acquisition Sub and the Company, in
consideration of the mutual covenants and on the basis of the representations 
and warranties set forth below, agree as follows:  

                                 DEFINITIONS  

     For purposes of this Agreement, the following terms shall have the meanings
 indicated below: 

     ARTICLES OF MERGER shall mean the Articles of Merger set forth as Exhibit A
hereto to be filed with the Virginia  State  Corporation  Commission in  
accordance  with the Virginia Stock Corporation Act. 

     BUSINESS  AGREEMENT(S) shall mean any management agreement,  service  
contract,insurance contract, loan agreement, mortgage, easement, covenant,  
restriction or other agreement or instrument affecting all or a portion 
of the Property. 

     CLINIC SPACE shall mean the Phase I, Phase II, and Phase III Main Clinic  
Building at the  intersection of Braeburn Drive and Route 419, Roanoke, Virginia
and any other space occupied or leased, or to be occupied or leased, on the 
Property  by  Lewis-Gale  Clinic,  LLC,  a Virginia  limited liability  company,
from  Acquisition  Sub.  

     CLOSING shall have the meaning set forth in Section  1.2.  

                                       1


     CLOSING DATE shall have the meaning set forth in Section 1.2.  

     CLOSING PRICE shall mean the average  closing sale price of a share of HRT
Common  Stock  on the New  York  Stock  Exchange  for  the  seven  trading  days
immediately  preceding  the Closing Date.

     Code shall mean the Internal Revenue Code of 1986,  as amended.  

     COMPANY  CERTIFICATES  shall mean a  certificate  or certificates   that   
immediately   prior  to  the  Effective  Time  represented outstanding shares of
Company Stock. 

     COMPANY DISSENTING SHARES shall mean shares of Company Stock with respect 
to which  dissenters'  rights, if any, are granted by reason of the Merger under
the Virginia Stock  Corporation  Act and which are not voted in favor of the  
Merger  and  otherwise  comply  with the  dissenters' rights  provisions of the 
Virginia Stock  Corporation  Act.  

     COMPANY  DISCLOSURE SCHEDULE shall mean that certain disclosure  document 
referred to in Section 2.1 hereof. 

     COMPANY FINANCIAL STATEMENTS shall have the meaning set forth in Section
2.9.  

     COMPANY  STOCK  shall mean each share of Common  Stock,  par value $15 per
share,  of the Company.  

     CONTROL AND SUPPORT  AGREEMENT  shall mean that certain Control and Support
Agreement to be entered into  between  Acquisition  Sub and Lewis-Gale  Clinic,
LLC,  with respect to the Lease  Agreements  pertaining  to Non-Clinic Space. 

     CONVERSION RATIO shall mean a fraction, the numerator of which is equal to
(i) the Value of the Company divided by (ii) the Closing Price;  and the 
denominator is equal to the number of shares of the Company Stock issued and
outstanding as of the Closing Date. Credit  Enhancements shall mean all security
deposits, security interests,  letters of credit, pledges, prepaid rent or other
sums,  deposits or  interests,  if any,  held by the Company with respect to the
Property,  the Tenant Leases or the Tenants.  

     CUSTODY  AGREEMENT  shall mean the Custody  Agreement  set forth as 
Exhibit D hereto and  described in Section 1.5.

     CUSTODY  SHARES  shall mean the HRT  Merger  Shares to be  deposited  in 
custody pursuant to the Custody Agreement.  

                                       2

     
     DISPOSITION shall have the meaning set forth in the Custody Agreement.  

     DUE DILIGENCE MATERIALS shall mean the information to be  provided by the 
Company to HRT  pursuant  to the  provisions  of Section 3.1 hereof.  

     EFFECTIVE  TIME  shall  have the  meaning  set  forth in  Section  1.2.

     ENGINEERING  DOCUMENTS shall mean all site plans, surveys, soil and 
substrata studies,architectural drawings, plans and specifications, engineering 
plans and studies,  floor plans,  landscape plans, and other plans and studies 
that relate to the Land, the  Improvements  or the Personal  Property.  

     ENVIRONMENTAL  CLAIM  shall  mean  any  claim,  action,  cause  of  action,
investigation  or notice  (written  or oral) by any  person  or entity  alleging
potential  liability  (including,  without  limitation,  potential liability for
investigatory  costs,  cleanup  costs,   governmental  response  costs,  natural
resources damages,  property damages,  personal injuries,  or penalties) arising
out of, based on or resulting  from, in part or in whole,  (a) the presence,  or
release  into the  environment,  of any  Hazardous  Materials  at any  location,
whether or not owned or operated by the Company or (b) circumstances forming the
basis of any violation, or alleged violation, of the Hazardous Materials Laws.

     EXCEPTION  DOCUMENTS  shall mean true,  correct and legible  copies of each
document listed as an exception to title on the Title Commitment.

     EXCHANGE AGENT shall mean Boston EquiServe, L.P.

     FIXTURES shall mean all permanently affixed equipment, machinery, fixtures,
and other items of real  and/or  personal  property,  including  all  components
thereof,  now and  hereafter  located  in, on or used in  connection  with,  and
permanently affixed to or incorporated into the Improvements, including, without
limitation,  all furnaces,  boilers,  heaters,  electrical  equipment,  heating,
plumbing,  lighting,  ventilating,  refrigerating,  incineration,  air and water
pollution control, waste disposal,  air-cooling and air-conditioning systems and
apparatus,  sprinkler  systems  and fire and  theft  protection  equipment,  and
built-in vacuum,  cable transmission,  oxygen and similar systems, all of which,
to the greatest extent permitted by law, are hereby deemed by the parties hereto
to  constitute  real  estate,  together  with all  replacements,  modifications,
alterations and additions thereto, but specifically excluding all items included
within the category of the Company's Personal Property.

     GUARANTY  AGREEMENT shall mean a Guaranty  Agreement,  between
Acquisition  Sub and PhyCor,  Inc., a Tennessee  corporation,  pursuant to which
PhyCor,  Inc. will guarantee the obligations of Lewis-Gale Clinic, LLC under the
Lease Administration Agreement.

                                       3


     HAZARDOUS  MATERIALS shall mean any toxic or hazardous  waste,
pollutants   or   substances,   including,   without   limitations,    asbestos,
polychlorinated biphenyls, petroleum products and byproducts, substances defined
or listed as hazardous  substance,  toxic substance,  toxic  pollutant,  medical
waste,  or  similarly  identified  substance  or mixture,  in or pursuant to the
Hazardous Materials Laws.

     HAZARDOUS  MATERIALS  LAWS  shall  mean  the  federal,   state
(including  specifically,  but not by way of  limitation,  the  Commonwealth  of
Virginia),  and  local  environmental,   health  or  safety  laws,  regulations,
ordinances,  rules  and  policies  and  the  common  law  relating  to the  use,
refinement,  handling,  treatment,  removal, storage,  production,  manufacture,
transportation  or  disposal,  emissions,  discharges,  releases  or  threatened
releases of Hazardous  Materials,  or otherwise  relating to  protection  of the
environment (including,  without limitation,  ambient air, surface water, ground
water,  land  surface  or  subsurface  strata),  as the same may be  amended  or
modified, including, without limitation, the statutes listed below:

     Federal Resources Conservation and Recovery Act of 1976, 42 U.S.C.ss. 6901,
et  seq.  

     Federal  Comprehensive  Environmental Response, Compensation, and
Liability Act of 1980, 42 U.S.C. ss. 9601, et seq.  

     Federal Clean Air Act, 42 U.S.C. ss. 7401, et seq.  

     Federal Water Pollution Control Act, Federal Clean
Water Act of 1977, 33 U.S.C. ss. 1251, et seq. 

     Federal Insecticide, Fungicide, and Rodenticide  Act, Federal Pesticide
 Act of 1978, 7 U.S.C.ss. 136, et seq.
     
     Federal Hazardous Materials Transportation Act, 48 U.S.C. ss. 1801, 
et seq. 

     Federal Toxic Substances Control Act, 15 U.S.C. ss. 2601, et seq. 

     Federal Safe Drinking Water Act, 42 U.S.C.  ss. 300f, et seq. 

     HRT COMMON STOCK shall mean the
shares  of  common  stock,  $.01 par value per  share,  of HRT.  HRT  Disclosure
Schedule shall mean that certain disclosure  document referred to in Section 4.1
hereof.

     HRT MERGER SHARES shall mean the shares of HRT Common Stock to be delivered
to the  stockholders of the Company  pursuant to this  Agreement,  including the
Custody Shares.

                                       4


     HRT SEC DOCUMENTS shall mean each report, schedule,  registration statement
and definitive  proxy statement filed by HRT with the SEC since January 1, 1996,
as such documents have, since the time of their filing, been amended.

     IMPROVEMENTS   shall   mean   all   buildings,   improvements,
structures and Fixtures now or on the Closing Date (as defined below) located on
the  Land,  including,  without  limitation,   landscaping,   parking  lots  and
structures,  roads,  drainage  and all  above  ground  and  underground  utility
structures, equipment systems and other so-called infrastructure improvements.

     INTANGIBLE   PROPERTY   shall  mean  all   Permits  and  other
intangible  property or any interest therein now or on the Closing Date owned or
held by the  Company  in  connection  with the  Land,  the  Improvements  or the
Fixtures,  or any  business or  businesses  now or  hereafter  conducted  by the
Company or any Tenant  thereon or with the use  thereof,  including  all leases,
contract rights, agreements, trade names, water rights and reservations,  zoning
rights,   business   licenses  and  warranties   (including  those  relating  to
construction  or  fabrication)  related  to the Land,  the  Improvements  or the
Fixtures, or any part thereof.

     INTELLECTUAL  PROPERTY  ASSETS shall mean the following to the
extent they are owned,  used,  or licensed  (as  licensee  or  licensor)  by the
Company:

          (i)  The  Company's  name,  all  fictional  business
          names, registered and unregistered trade names, registered and
          unregistered   trademarks,   service   marks,   d/b/a   names,
          applications, and notices of allowance;

          (ii)    All patents and patent applications;

          (iii) All  copyrights,  and copyright  registrations
          and  applications,  in both  published  works and  unpublished
          works that are material to the Company's business;

          (iv)    All rights in mask works; and

          (v)  All  know-how,   trade  secrets,   confidential
          information,    software,   technical   information,   process
          technology,  inventions, processes, formulae, plans, drawings,
          and blue prints.

     INTERIM BALANCE SHEEt shall have the meaning set forth in Section 2.9.

     KNOWLEDGE shall mean the actual knowledge of a party including
(i) receipt of written  notice by such party or (ii)  knowledged  learned  after
inquiry of the directors,  officers and employees of such party,  but not of the
stockholders of such party in their respective capacity as stockholders.

                                       5


     LAND shall mean the real property more particularly described on Exhibit C,
attached hereto and made a part hereof,  together with all covenants,  licenses,
privileges and benefits  thereto  belonging,  and any easements,  rights-of-way,
rights of ingress or egress or other interests in, on, or to any land,  highway,
street, road or avenue, open or proposed,  in, on, across, in front of, abutting
or adjoining such real property including,  without  limitation,  any strips and
gores  adjacent to or lying  between such real  property  and any adjacent  real
property

     LEASE  AGREEMENTS  shall mean those certain  lease  agreements
with respect to the Clinic Space to be entered into between  Acquisition Sub, as
lessor,  and Lewis-Gale  Clinic,  LLC, as lessee,  which lease  agreements shall
contain terms of at least 15 years,  CPI  adjustments,  and expense  stops,  and
rents as set forth on  Exhibit  F  attached  hereto,  and such  other  usual and
customary terms found in commercial leases of this nature.

     LEASE  ADMINISTRATION  AGREEMENT shall mean that certain Lease
Administration  Agreement  to  be  entered  into  between  Acquisition  Sub  and
Lewis-Gale  Clinic,  LLC with respect to the Lease Agreements  pertaining to the
Clinic Space.

     LEGAL  REQUIREMENT shall have the meaning set forth in Section 2.5.

     MERGER  shall  mean the  merger of the  Company  with and into
Acquisition  Sub in  accordance  with  the  Virginia  Stock  Corporation  Act as
provided in this Agreement and the Articles of Merger.

     MERGER CONSIDERATION shall mean the HRT Merger Shares together with any 
cash  payments  in lieu of  fractional  shares as  provided  in Section
1.6(d) hereof.

     NON-CLINIC  SPACE shall mean any portion of the Property other than Clinic
 Space.

     PERMITS shall mean all permits, licenses, approvals, entitlements and other
governmental   and   quasi-governmental    authorizations   including,   without
limitation,  certificates of occupancy or need,  required in connection with the
ownership, planning, development, construction, use, operation or maintenance of
the Property  (but  excluding  the  Company's  operating  permits,  licenses and
certificates  of need).  As used herein,  quasi-governmental  shall  include the
providers of all utilities services to the Property.

     PERMITTED  EXCEPTIONS  shall  mean  the  title exceptions  or defects which
have been approved in writing by HRT.

     PERSONAL  PROPERTY  shall mean all  Intangible  Property,  Warranties,  and
Engineering Documents, all machinery, furnishings,  equipment, tools, machinery,
                                      
                                    6

fixtures, computers,  appliances and all other tangible personal property, other
than the  Fixtures,  now or on the Closing  Date located on or about the Land or
Improvements or used in connection with the Company's  business or the Property,
which is owned by the Company (specifically excluding computer equipment,  food,
linens, clothing, medical records, vehicles and other personal property owned by
Tenants and personal property owned by patients and employees of Tenants).


     PROPERTY shall mean,  collectively,  the Land and all rights, titles, and
appurtenant  interests,  the Credit Enhancements,  the Business Agreements, the
Improvements,  the Fixtures, the Personal Property, the Intangible Property, the
Engineering  Documents,  and  the  Tenant  Leases.  As  used  in the  foregoing,
appurtenant  interests shall mean those interests which pass by operation of law
with the conveyance of the fee simple estate in the Land and Improvements.
                  
     REAL PROPERTY shall mean the Land, the Improvements and the Fixtures.

     REVIEW PERIOD shall mean a period  commencing on the date of this Agreement
and ending 30 days from the date of HRT's  receipt of the last of the  following
documents:  Due Diligence  Materials,  Title  Commitment,  Exception  Documents,
Search Reports and Survey.

     S-4 REGISTRATION STATEMENT shall have the meaning set forth in
Section 10.1.

     SEARCH  REPORTS  shall  mean  reports  of  searches  made  of  the  Uniform
Commercial  Code Records of the  jurisdiction  in which the Property is located,
and of the State  Corporation  Commission  of  Virginia,  which  searches  shall
reflect  that none of the  Property  is  encumbered  by liens  other  than liens
disclosed to HRT herein.  The Search Reports shall be updated,  at the Company's
expense, at or within one week prior to the Closing Date.

     SEC shall mean the United States Securities and Exchange Commission.

     SECURITIES  ACT  shall  mean the  Securities Act of 1933, as amended.

     SURVEY  shall  mean a  current  as-built  ALTA  survey,  certified  to ALTA
requirements, prepared by an engineer or surveyor licensed in the State in which
the  Land is  located  acceptable  to HRT,  which  shall:  (a)  include  a legal
description  of the Land by metes and bounds (which shall include a reference to
the recorded plat, if any), and a computation of the area comprising the Land in
both acre, gross square feet and net square feet (to the nearest  one-thousandth
of said respective measurement); (b) accurately show the location on the Land of
all  Improvements,  building and setback  lines,  fences,  evidence of abandoned
fences,  ponds, creeks,  streams,  rivers,  officially designated 100-year flood
plains and flood prone areas, canals, ditches,  easements,  roads, rights-of-way
and  encroachments;  (c) be  certified  to  HRT,  the  Title  Company,  and  any
third-party  lender designated by HRT; (d) legibly identify any and all recorded
matters shown on said survey by appropriate volume and page recording references
with dates of  recording  noted and the survey  shall show the  location  of all
                                  
                                   7

adjoining streets;  and (e) be satisfactory to the Title Company so as to permit
it to amend the standard exception for area and boundaries in the Title Policy.

     TAXES shall mean all taxes, assessments and charges imposed by any federal,
state,  local or foreign  taxing  authority, including  interest, penalties and
additions thereto.

     TENANT  shall mean the lessees or tenants under the Tenant Leases, if any.

     TENANT  LEASES  shall mean all  subleases,  if any,  under the
Lease  Agreements  for  the  Clinic  Space,  and  all  other  leases  or  rental
agreements,  if any (written or verbal, now or hereafter in effect) that grant a
possessory  interest  in and to any space,  including  the Clinic  Space and the
Non-Clinic  Space, in the Improvements or that otherwise have rights with regard
to the use of the Land or  Improvements,  and all  security  deposits  or Credit
Enhancements, if any, held in connection therewith.

     TITLE  COMMITMENt  shall  mean a  current  commitment  issued  by the Title
Company to the HRT pursuant to the terms of which the Title Company shall commit
to issue  the Title  Policy to HRT in  accordance  with the  provisions  of this
Agreement,  and  reflecting  all matters  which would be listed as exceptions to
coverage  on the  Title  Policy.  

     TITLE  COMPANY  shall  mean a title  insurance company, licensed in the 
Commonwealth of Virginia, acceptable to HRT.
                  
     TITLE  POLICY  shall mean an ALTA  Extended  Coverage Owner's Policy of 
Title  Insurance  (1970 Form B - 1987  revision),  together  with such
endorsements thereto as are reasonably and customarily required by institutional
purchasers  of real  property  similar to the  Property,  with  liability in the
amount of the Value of the Company,  dated as of the Closing Date, issued by the
Title  Company,  insuring title to the fee interest in the Real Property in HRT,
subject only to the Permitted  Exceptions  (as  hereinafter  defined) and to the
standard printed exceptions  included in the ALTA standard form owner's extended
coverage policy of title insurance,  with the following  modifications:  (a) the
exception for areas and  boundaries  shall be deleted;  (b) the exception for ad
valorem taxes shall reflect only taxes for the current and subsequent years; (c)
any exception as to parties in possession  shall be limited to rights of tenants
in possession,  as tenants only, pursuant to each Lease Agreement and the Tenant
Leases;  (d) there  shall be no  general  exception  for  visible  and  apparent
easements or roads and highways or similar items (with any exception for visible
and apparent easements or roads and highways or similar items to be specifically
referenced  to and  shown  on the  Survey  and  also  identified  by  applicable
recording  information);  and (e) all  other  exceptions  shall be  modified  or
endorsed in a manner acceptable to HRT.

     TRANSACTION DOCUMENTS shall mean this Agreement and all other documents 
and agreements to be executed and delivered by a party hereunder.

                                       8


     VALUE OF THE COMPANY shall mean the value  determined  in  accordance  with
Exhibit B attached hereto;  provided,  however,  that immediately  preceding the
Closing,  Exhibit B shall be adjusted to reflect the Company's  financial status
as of the Effective Time.

     VIOLATION shall have the meaning set forth in Section 2.4.

     WARRANTIES shall mean all warranties,  representations  and guaranties with
respect to the Property,  whether express or implied, which Company now holds or
under which Company is the beneficiary,  including,  without limitation,  all of
the  representations,  warranties  and guaranties  given and/or  assigned to the
Company under the Guaranty Agreement or the Tenant Leases.

                                    ARTICLE I                 

                                   THE MERGER

     1.1. THE MERGER. Subject to the terms and conditions of this Agreement,  at
the Effective  Time (as defined below) the Company shall be merged with and into
Acquisition Sub and the separate existence of the Company shall thereupon cease,
in accordance with the applicable  provisions of the Virginia Stock  Corporation
Act of the  Commonwealth  of  Virginia.  Acquisition  Sub will be the  surviving
corporation  in the Merger and will  continue  to be governed by the laws of the
Commonwealth of Virginia,  and the separate  corporate  existence of Acquisition
Sub and all of its rights and  liabilities as a corporation  organized under the
laws of the Commonwealth of Virginia will continue unaffected by the Merger.

     1.2. THE CLOSING.  The delivery by HRT, Acquisition Sub, and the Company of
the various instruments and documents which this Agreement contemplates shall be
so  delivered  immediately  prior  to the  Effective  Time of the  Merger  shall
constitute the Closing. The Closing shall take place at the offices of HRT, 3310
West End Avenue,  Nashville,  Tennessee,  at 10:00 a.m., local time, on the next
business day (or as soon  thereafter  as  practicable)  after the meeting of the
Company's  stockholders  referred to in Section 10.3, or at such other place and
date as the parties fix by mutual consent (the Closing Date).  Contemporaneously
with the Closing, a fully executed copy of the Articles of Merger shall be filed
with the Virginia  State  Corporation  Commission.  Subject to and in accordance
with the laws of the Commonwealth of Virginia,  the Merger will become effective
at the date and time the  Articles of Merger are filed with the  Virginia  State
Corporation  Commission  or such later time or date as may be  specified  in the
Articles of Merger (the Effective Time).

     1.3.  THE  SURVIVING   CORPORATION.   The  Articles  of   Incorporation  of
Acquisition  Sub as in effect  immediately  prior to the Effective Time shall be
the Articles of Incorporation  of Acquisition Sub, as the surviving  corporation
of the Merger, on and after the Effective Time. The Bylaws of Acquisition Sub as
                                      
                                        9

in  effect  immediately  prior to the  Effective  Time  shall be the  Bylaws  of
Acquisition  Sub, as the surviving  corporation of the Merger,  on and after the
Effective  Time.  From and after the Effective  Time,  the Board of Directors of
Acquisition  Sub as in effect  immediately  prior to the Effective Time shall be
the Board of Directors of Acquisition  Sub, as the surviving  corporation of the
Merger, on and after the Effective Time.



     1.4.  CONVERSION OF SHARES.   

     (a) At the  Effective  Time, by virtue of the Merger and without any action
on the part of any holder of any capital stock of  Acquisition  Sub, each issued
and  outstanding  share  of  common  stock of  Acquisition  Sub  shall  continue
unchanged and remain  outstanding as a share of common stock of Acquisition  Sub
as the surviving corporation.

     (b) At the  Effective  Time, by virtue of the Merger and without any action
on the part of any holder of any  capital  stock of the  Company,  each share of
Company Stock, other than Company Dissenting Shares,  shall,  subject to Section
1.6(d) below,  be converted  into,  and become  exchangeable  for, the number of
shares of HRT Common Stock determined by the Conversion Ratio.

     1.5.  TAX  CUSTODY. At the Closing, HRT shall issue and retain, in custody,
the Custody Shares pursuant to a Custody Agreement in the form attached hereto 
as Exhibit D.

     1.6.  EXCHANGE OF STOCK CERTIFICATES.

     (a) On or prior to the Closing Date, HRT shall direct the Exchange Agent to
issue the certificates representing the HRT Merger Shares required to effect the
exchange  referred to in Section  1.4.  HRT shall also deposit with the Exchange
Agent the cash required to make the cash  payments in lieu of fractional  shares
referred to in Section 1.6(d) below.  The HRT Merger Shares into which shares of
Company  Stock  shall be  converted  in the Merger  shall be deemed to have been
issued at the Effective Time.

     (b)  From  and  after  the  Effective   Time,  each  holder  of  a  Company
Certificate,  other than Company Dissenting Shares, shall be entitled to receive
in exchange  therefor,  upon surrender  thereof to the Exchange Agent  (together
with representations reasonably required by HRT that the party surrendering such
shares has good and marketable  title to such shares free of all restrictions on
transfers  (other than those imposed by the Securities  Act and applicable  blue
sky laws), liens,  encumbrances and security interests, and claims whatsoever) a
certificate  or  certificates  representing  the  number of whole  shares of HRT
Common Stock into which such  holder's  shares of Company  Stock were  converted
pursuant  to Section 1.4 and cash in lieu of any  fractional  shares of such HRT
Common Stock pursuant to Section 1.6(d).  From and after the Effective Time, HRT
shall be  entitled  to treat the  Company  Certificates  which have not yet been
surrendered  for  exchange as  evidencing  the  ownership  of the number of full
shares  of  HRT  Common  Stock  into  which  the  shares  of the  Company  Stock
represented by such certificates  shall have been converted  pursuant to Section

                                       10

1.4,  notwithstanding  the  failure to  surrender  such  certificates.  However,
notwithstanding  any  other  provision  of  this  Agreement,  until  holders  or
transferees  of Company  certificates  have  surrendered  them for  exchange  as
provided  herein,  no  dividends  shall  be  paid  with  respect  to any  shares
represented by such Company  Certificates  and no payment for fractional  shares
shall be made. Upon surrender of a Company  Certificate,  there shall be paid to
the holder of such  certificate  the amount of any dividends  which  theretofore
became payable, but which were not paid by reason of the foregoing, with respect
to the number of whole shares of HRT Common Stock represented by the certificate
issued upon such surrender. If any certificate for shares of HRT Common Stock is
to be  issued  in a name  other  than  that in  which  the  Company  Certificate
surrendered in exchange therefor is registered,  it shall be a condition of such
exchange  that the person  requesting  such  exchange  shall pay any transfer or
other taxes required by reason of the issuance of  certificates  for such shares
of HRT Common  Stock in a name other than that of the  registered  holder of any
such Company Certificate surrendered.

     (c) As soon as  practicable  after the Effective  Time,  the Exchange Agent
shall mail to each holder of record of a Company  Certificate  (i) a form letter
of transmittal (which shall specify that delivery shall be effected, and risk of
loss and title to the Company  Certificate shall pass, only upon actual delivery
of the Company  Certificate to the Exchange Agent), (ii) instructions for use in
effecting the surrender of the Company Certificate in exchange for a certificate
representing  shares of HRT Common  Stock,  and (iii) the form of letter to make
the  required  representations  as to title  of the  Company  Certificate.  Upon
surrender of the Company  Certificate  for  cancellation  to the Exchange Agent,
together with a duly executed  letter of transmittal and such other documents as
the Exchange Agent shall require,  the holder of such Company  Certificate shall
be entitled  to receive in exchange  therefor a  certificate  representing  that
number of whole  shares of HRT  Common  Stock  into  which the shares of Company
Stock  represented by the Company  Certificate  so  surrendered  shall have been
converted pursuant to the provisions of Section 1.4, and the Company Certificate
so surrendered shall be cancelled.  Notwithstanding  the foregoing,  neither the
Exchange  Agent  nor any party  hereto  shall be liable to a holder of shares of
Company  Stock for any shares of HRT Common Stock or dividends or  distributions
thereon delivered to a public official pursuant to applicable escheat laws.

     (d)  Notwithstanding  any other provision of this Agreement or the Articles
of Merger,  no certificates  or scrip for fractional  shares of HRT Common Stock
shall be issued upon the  surrender  for  exchange  of any  Company  Certificate
pursuant to this Article I in the Merger and no HRT Common Stock dividend, stock
split or interest shall relate to any fractional  security,  and such fractional
interests  shall not entitle the owner thereof to vote or to any other rights of
a security holder. In lieu of any such fractional shares, each holder of Company
Stock who would  otherwise  have been  entitled  to a fraction of a share of HRT
Common Stock upon surrender of the Company  Certificate for exchange pursuant to
this Article I hereof,  shall be entitled to receive  from the Exchange  Agent a
cash payment in lieu of such fractional share equal to such fraction  multiplied
by the Closing Price.

                                       11


     1.7. DISSENTING SHARES.  Notwithstanding anything to the contrary contained
in this  Agreement  or the  Articles  of Merger,  holders of Company  Dissenting
Shares shall not be entitled to shares of HRT Common  Stock  pursuant to Section
1.4,  unless and until the holder  thereof shall have failed to perfect or shall
have  effectively  withdrawn  or lost such  holder's  right to dissent  from the
Merger  under the  Virginia  Stock  Corporation  Act,  and shall be  entitled to
receive only the payment provided for pursuant to the Virginia Stock Corporation
Act. If any such holder  shall have failed to perfect or shall have  effectively
withdrawn or lost such  holder's  dissenters'  rights  under the Virginia  Stock
Corporation  Act, such holder's  Company  Dissenting  Shares shall  thereupon be
deemed to have been  converted into and to have become  exchangeable  for, as of
the Effective Time, the right to receive the Merger Consideration.

     1.8.  CLOSING OF TRANSFER  BOOKS. From and after the Effective Time, the
stock transfer books of the Company shall be closed and no transfer of shares of
the Company Stock shall  thereafter be made.  If, after the Effective  Time, any
Company Certificates are presented to HRT, they shall be cancelled and exchanged
for Merger  Consideration  in accordance  with the  procedures set forth in this
Article I.


                                   ARTICLE II                               

                  REPRESENTATIONS AND WARRANTIES OF THE COMPANY

     2.1. GENERAL  STATEMENT. The Company represents and warrants to HRT and
Acquisition Sub that to the Knowledge of the Company the statements contained in
this  Article II are correct and complete as of the date of this  Agreement  and
will be correct  and  complete on and as of the Closing (as though made then and
as though  the  Closing  Date were  substituted  for the date of this  Agreement
throughout  this  Article  II),  except as set forth in the  Company  Disclosure
Schedule   delivered   by  the  Company  to  HRT.   The  survival  of  all  such
representations and warranties shall be in accordance with Section 9.1 hereof.

     2.2. ORGANIZATION AND STANDING OF THE COMPANY. The Company is a corporation
duly  organized,  validly  existing,  and in good standing under the laws of the
Commonwealth of Virginia,  with corporate power to own property and carry on its
business as it is now being  conducted.  Copies of the Articles of Incorporation
of  the  Company,  certified  as of a  recent  date  by  the  State  Corporation
Commission  of Virginia and  delivered to HRT,  are complete and  accurate.  The
Company is not  required  to be  qualified  to  transact  business  as a foreign
corporation in any  jurisdiction  other than the  Commonwealth of Virginia.  The
Company has no subsidiaries nor any interest in any other corporation,  firm, or
partnership.

     2.3. AUTHORIZATION  OF THE  TRANSACTION.  The  Company  has all  requisite
corporate  power and  authority  to enter into the  Transaction  Documents  and,
subject to approval of this  Agreement by the  stockholders  of the Company,  to
consummate the transactions  contemplated thereby. The Board of Directors of the

                                       12


Company, by the unanimous vote of all directors present, has approved the Merger
and the  Transaction  Documents and determined that the Merger is fair to and in
the best  interests of the Company's  stockholders  and has adopted  resolutions
recommending  approval and adoption of the Merger and the Transaction  Documents
by the stockholders of the Company.  No other corporate or legal  proceedings on
the part of the Company, other than the approval of the Company's  stockholders,
are  necessary  to approve  and  authorize  the  execution  and  delivery of the
Transaction  Documents and the  consummation  of the  transactions  contemplated
thereby.


     2.4. VALID AND BINDING AGREEMENT.This Agreement has been and,on the Closing
Date, the Transaction  Documents will have been,  duly and validly  executed and
delivered  by the  Company  and,  subject to such  approval  of the  Transaction
Documents  by the  stockholders  of the Company,  this  Agreement is and, on the
Closing Date, each Transaction  Document will be, a valid and binding obligation
of the Company enforceable in accordance with its terms.

     2.5. NO CONFLICT. Neither the execution and delivery by the Company of the
Transaction  Documents nor the  consummation  of the  transactions  contemplated
thereby nor compliance with any of the provisions of the  Transaction  Documents
will (i) conflict with or result in a breach of any provision of the Articles of
Incorporation or By-Laws of the Company,  (ii),  except as described in Schedule
2.5,  violate,  or conflict  with, or result in a breach of any provision of, or
constitute  a default (or an event  which,  with notice or lapse of time or both
would constitute a default) under, or result in the termination or in a right of
termination or cancellation  of, or accelerate the  performance  required by, or
result in the creation of any lien,  security  interest,  charge or  encumbrance
upon any of the  properties  of the  Company or result in being  declared  void,
voidable,   without  further   binding  effect,   or  subject  to  amendment  or
modification  any of the terms,  conditions or provisions of, any material note,
bond, mortgage,  indenture,  deed of trust, or any material license,  franchise,
permit, lease, contract, agreement or other material instrument or commitment or
obligation  pertaining  to the  business  conducted  by the Company to which the
Company or any of its  properties  may be bound or affected,  (iii)  violate any
law,  statute,  order,  writ,  injunction,   decree,  judgment,   ruling,  rule,
regulation, policy, treaty, directive, convention, interpretation, guideline, or
judgment of any federal, state, local or foreign court or governmental authority
(a Legal  Requirement)  applicable to the Company or any of its  properties,  or
(iv) except as  described  in Schedule  2.5,  require any  consent,  approval or
authorization of, or notice to, or declaration, filing or registration with, any
governmental or regulatory authority.

     2.6. REQUIRED  CONSENTS.  Except as described in Schedule 2.6, neither the
Company  nor any of its  stockholders  is a party to or  bound by any  mortgage,
lien,  deed of trust,  or any material  lease,  agreement or instrument,  or any
statute,  order,  judgment or decree pertaining to the business conducted by the
Company  which would  require the  consent of another to the  execution  of this
Agreement  or  prohibit  or  require  the  consent  of  another  to,  any of the
transactions referred to in or contemplated by the Transaction Documents.


                                       13


     2.7. CAPITALIZATION. The Company has an authorized capitalization of 50,000
shares of common stock,  all of one class of the par value of $15 per share, and
as of the date of this  Agreement,  18,510  shares are  issued and  outstanding,
fully paid, and nonassessable. There are no outstanding subscriptions,  options,
contracts,  commitments,  preemptive  rights,  securities  convertible  into  or
exchangeable for shares of Common Stock, agreements, or demands of any character
relating to the  authorized  but unissued  stock of the Company  under which the
Company  would be obligated to issue or purchase,  reacquire or redeem shares of
its capital stock.

     2.8.  NO  VIOLATION  OR  DEFAULT.  (a)  Neither  the Company nor any of its
officers,  directors or employees  (because of any such  person's  activities on
behalf of the Company) is in violation of, or under  investigation  with respect
to, or has been charged with or given notice of any violation of, any applicable
Legal  Requirement  which could have a material  adverse  effect on the business
conducted by the Company, nor is there any basis therefor. The Company has filed
with the proper  authorities  all statements  and reports  required by the laws,
regulations,  licensing  requirements,  and  orders  to  which  it or any of its
officers,  directors or employees  (because of any such  person's  activities on
behalf of the  Company)  is  subject,  the  failure to file  which  could have a
material adverse effect on the business conducted by the Company.

     (b) Except as  described  in chedule  2.8,  the  ompany has  performed  all
material  obligations  required to be performed by it, and the Company is not in
default (and no event has occurred which, with the passage of time or the giving
of notice,  or both,  would constitute a default) with respect to any obligation
to be performed under any material  agreement or arrangement to which the assets
of the  Company  are  subject,  nor is there  any claim of such  default,  which
default or its  consequences  might  materially  adversely  affect the  business
conducted by the Company or financial condition of the Company.

     2.9. FINANCIAL  STATEMENTS. Set forth as Schedule 2.9 are true, correct and
complete copies of the following: (i) the audited balance sheets of the Company,
including the notes  thereto,  as of June 30, 1993 through  1995,  respectively,
(ii) the audited statements of income,  changes in stockholders' equity and cash
flow of the Company,  including in each case the notes thereto and the report of
the Company's  independent  certified public accountants  thereon, for the years
ended June 30, 1993 through 1995,  respectively,  and (ii) the unaudited balance
sheet of the Company as of June 30, 1996 (the Interim Balance Sheet),  including
the related  statements of income and changes in  stockholders'  equity and cash
flow of the Company for the 12 months  ended June 30,  1996,  including  in each
case the notes thereto.  (All of the financial  statements  referred to above in
this  Section  2.9  are  hereinafter  collectively  referred  to as the  Company
Financial  Statements.) The Company Financial Statements have been prepared from
and are in  accordance  with the books and  records  of the  Company,  are true,
complete and accurate,  and fairly  present the financial  position,  results of
operations and changes in financial position as of the dates and for the periods
indicated,  in each  case  in  accordance  with  generally  accepted  accounting
principles  consistently  applied,  subject,  in the case of  interim  financial
statements,  to normal recurring year-end  adjustments (the effect of which will


                                       14


not,  individually  or in the  aggregate,  be materially  adverse).  The Company
Financial  Statements do not contain any statement  which is false or misleading
with respect to any material fact or omit to state any material fact required to
be stated  therein or  necessary  in order to make the  statements  therein  not
misleading.  Schedule 2.9 contains a true and correct  schedule which  describes
all of the  prepaid  items and  deposits  of the  Company  as of the date of the
Interim Balance Sheet.


     2.10. BOOKS AND RECORDS. The  books of account,  minute books, stock record
books and other records of the Company, all of which have been made available to
HRT, are complete and correct and have been  maintained in  accordance  with the
sound  business  practices  and the  requirements  of  Section  13(b)(2)  of the
Securities  Exchange  Act of 1934  (regardless  of whether or not the Company is
subject to that Section),  including,  but not limited to, the maintenance of an
adequate  system of internal  controls.  The minute books of the Company contain
accurate and  complete  records of all meetings  held of, and  corporate  action
taken by, the  stockholders,  the board of directors and committees of the board
of directors of the Company and no meetings of any such  stockholders,  board of
directors or  committees  has been held for which minutes have not been prepared
and are not contained in such minute books.  At the Closing,  all of those books
and records will be in the possession of HRT. The Company has furnished HRT with
any annual management  letters from the Company's  independent  certified public
accountants  for each of the last three years to the extent such letters address
the business conducted by the Company.

     2.11. CONTRACTS; NO DEFAULTS.(a) Schedule 2.11 lists,  and the Company has
delivered  to HRT copies of, all  material  contracts  to which the Company is a
party or by which the Company is bound. Schedule 2.11 also sets forth reasonably
complete details concerning such contracts,  including,  among other things, the
parties to the contracts,  the amount of the remaining commitment of the Company
thereunder.

     (b) Except as described in Schedule  2.11,  all of the contracts  listed in
pursuant to  paragraph  (a) hereof are in full force and  effect,  are valid and
enforceable in accordance with their terms, and no condition exists or event has
occurred which, with notice or lapse of time or both, would constitute a default
or  a  basis  for  force   majeure  or  other  claim  of   excusable   delay  or
non-performance  thereunder.  All parties  with which the  Company has  material
contractual  arrangements  in respect of the  business  conducted by the Company
are, to the Knowledge of the Company,  in substantial  compliance  therewith and
are not in default (and no event has occurred which, with the passage of time or
the giving of notice,  or both would  constitute a default)  thereunder.  To the
best  knowledge of the Company,  the terms and  conditions of all such contracts
are  reasonable  and customary in the industries and trades in which the Company
operates, and there are no extraordinary terms contained therein.

     (c)  There  are no  renegotiations  of,  or  attempts  to  renegotiate,  or
outstanding  rights to renegotiate,  any material amounts paid or payable to the
Company  under  current  or  completed  contracts  with any  person  having  the
contractual or statutory right to demand or require such  renegotiation.  To the
Knowledge  of the  Company,  no such  person  has made  written  demand for such
renegotiation.

                                       15


      2.12. The Property. 

     (a) The Company, at the Closing, has and following the Merger,  Acquisition
Sub will  have,  good,  marketable  and  insurable  title to all of its  assets,
including the Property, free and clear of any deeds of trust,  mortgages,  liens
(other than the lien for ad valorem taxes for the current year,  not yet due and
payable),   encumbrances,   leases,  tenancies,   licenses,  chattel  mortgages,
conditional  sales  agreements,  security  interests,   covenants,   conditions,
restrictions,  judgments, rights-of-way,  easements, encroachments and any other
matters  affecting  title or use of all of its assets,  including  the Property,
except Permitted Exceptions.

     (b) There are no adverse or other  parties in possession of the Property or
of any part  thereof  except the Company and  Tenants,  if any,  under valid and
effective Tenant Leases.  No party has been granted any license,  lease or other
right  relating to the use or possession of the Property,  except  Tenants under
Tenant Leases.

     (c) Each Tenant Lease is in full force and effect and has not been amended,
modified,  supplemented  or terminated in any way that has not been disclosed to
HRT in writing.  The Tenant Leases constitute all written and oral agreements of
any kind for the leasing, rental or occupancy of any portion of the Property. No
default or breach on the part of the  landlord or Tenant,  if any,  exists under
any of the  Tenant  Leases nor will any exist as of the  Closing.  All rents due
under the leases have not been reduced, modified or forgiven in any way and have
been  timely  paid.  All  Tenant  improvements,   repairs  and  other  work  and
obligations, if any, then required to be performed by the landlord under each of
the Tenant  Leases will be fully  performed  and paid for in full on or prior to
the Closing.  The Company has not accepted the payment of rent or other sums due
under any of the Tenant Leases for more than one month in advance.

     (d) As of the Closing,  none of the Tenant  Leases and none of the rents or
other charges payable  thereunder,  if any, will have been assigned,  pledged or
encumbered.

     (e) As of the  Closing,  no  brokerage  or  leasing  commissions  or  other
compensation  will be due or payable to any person,  firm,  corporation or other
entity with respect to, or on account of, any Tenant Lease or any  extensions or
renewals thereof.

     (f) No notice has been received from any insurance  company that has issued
a policy with  respect to any portion of the  Property or from any board of fire
underwriters (or other body exercising similar functions),  claiming any defects
or  deficiencies  or requiring  the  performance  of any repairs,  replacements,
alterations  or other work and as of the  Closing no such  notice will have been
received  which  shall not have been cured.  No notice has been  received by the
Company from any issuing insurance company that any of such policies will not be
renewed,  or will be renewed  only at a higher  premium  rate than is  presently
payable therefor.

                                       16


     (g) No  pending  condemnation,   eminent  domain,  assessment  or  similar
proceeding or charge  affecting the Property or any portion  thereof  exists and
none will exist as of the Closing Date. The Company has not heretofore  received
any  notice,  and has no  Knowledge,  that  any such  proceeding  or  charge  is
contemplated.  The Company has not received any notice of a proposed increase in
the assessed valuation of the Property.

     (h) All  Improvements  (including  all utilities)  have been  substantially
completed and installed in accordance with the plans and specifications approved
by the governmental  authorities  having  jurisdiction to the extent applicable.
Permanent certificates of occupancy, all licenses,  permits,  authorizations and
approvals required by all governmental authorities having jurisdiction,  and the
requisite  certificates of the local board of fire  underwriters  (or other body
exercising similar functions) have been issued for the Improvements,  and, as of
the  Closing  Date,  all of the  same  will be in full  force  and  effect.  The
Improvements,   as  designed  and   constructed,   comply  with  all   statutes,
restrictions, regulations and ordinances applicable thereto.

     (i) To the best knowledge of the Company,  the existing water,  sewer,  gas
and electricity lines, storm sewer and other utility systems on the Property are
adequate to serve the utility needs of the Property.  All utilities required for
the operation of the Improvements  enter the Property  through  adjoining public
streets or through  adjoining  private land in  accordance  with valid public or
private  easements  that will  inure to the  benefit  of  Acquisition  Sub.  All
approvals,  licenses and permits  required for said utilities have been obtained
and are, and will be as of the Closing  Date,  in force and effect.  All of said
utilities are installed and operating,  all installation and connection  charges
have  been  paid  in  full,  and the  right  to the  return  of any  deposit  or
contribution in connection therewith shall inure to Acquisition Sub.

     (j)  The  location,  construction,  occupancy,  operation  and  use  of the
Property  (including  the  Improvements)  do not  violate  any  applicable  law,
statute, ordinance, rule, regulation, order or determination of any governmental
authority or any board of fire  underwriters  (or other body exercising  similar
functions),  judicial precedent or any restrictive  covenant or deed restriction
(recorded or otherwise)  affecting  the Property or the location,  construction,
occupancy,   operation  or  use  thereof,  including,  without  limitation,  all
applicable zoning ordinances and building codes,  flood disaster laws and health
and environmental laws and regulations.

     (k) To the best knowledge of the Company,  there are no structural  defects
in any of the buildings or other  Improvements  constituting  the Property.  The
Improvements,  all heating, electrical,  plumbing and drainage at, or servicing,
the Property and all  facilities and equipment  relating  thereto are, and as of
the  Closing  will be, in good  condition  and  working  order and  adequate  in
quantity and quality for the normal  operation of the  Property.  No part of the
Property has been destroyed or damaged by fire or other  casualty.  There are no
unsatisfied requests for repairs, restorations or alterations with regard to the
Property from any person, entity or authority,  including but not limited to any
Tenant, lender, insurance provider or governmental authority.

                                       17


     (l) Except as described in Schedule 2.12(l),  no work has been performed or
is in progress at the Property, and no materials will have been delivered to the
Property that might provide the basis for a mechanic's,  materialman's  or other
lien against the Property or any portion thereof.

     (m)  There  exist no  service  contracts,  management  or other  agreements
applicable to the Property other than those furnished to HRT pursuant to Article
III.  There are no agreements or  understandings  (whether oral or written) with
respect to the Property or any portion thereof, to which the Company is a party,
other than those delivered to HRT pursuant to Article III.

     (n) No default or breach exists, or as of the Closing will exist, under any
of the Business Agreements, or any of the covenants,  conditions,  restrictions,
rights-of-way or easements affecting the Property or any portion thereof.

     (o)  There are no  actions,  suits or  proceedings  pending  or  threatened
against or affecting the Company,  the Property or any portion  thereof,  any of
the Tenant  Leases or  relating to or arising  out of the  ownership,  or by any
federal,  state, county or municipal  department,  commission,  board, bureau or
agency or other governmental instrumentality,  other than those disclosed to HRT
pursuant to Article III. All judicial  proceedings  concerning the Property will
be finally dismissed and terminated prior to the Closing Date.

     (p) The Property has free and unimpeded access to presently existing public
highways and/or roads (either  directly or by way of perpetual  easements);  and
all approvals  necessary therefor have been obtained,  and are and will be as of
the Closing  Date in full force and effect.  No fact or  condition  exists which
would result in the  termination  of the current access from the Property to any
presently  existing  public  highways  and/or roads adjoining or situated on the
Property.

     (q) There are no  attachments,  executions,  assignments for the benefit of
creditors,  or voluntary or  involuntary  proceedings in bankruptcy or under any
other debtor relief laws  contemplated  by or pending or threatened  against the
Company, the Property or any Tenant.

     2.13. ENVIRONMENTAL.  Except as described in Schedule 2.13: (a) the Company
is currently  in full  compliance  with  all  Hazardous  Materials  Laws  which
compliance includes, but is not limited to, the possession by the Company of all
permits  and other  governmental  authorization  required  under  the  Hazardous
Materials  Laws,  and  compliance in all respects with the terms and  conditions
thereof;

     (b) The Company has not stored, disposed of or arranged for disposal of any
Hazardous  Materials  on any of the Real  Property  (consisting  of  owned  Real
Property and leased Real Property), except in full compliance with the Hazardous
Materials Laws;

                                       18


     (c) The Company has not received any communication  whatsoever  (written or
oral),  whether  from a  governmental  authority,  citizens  group,  employee or
otherwise,  that  alleges  that the Company is not in full  compliance  with the
Hazardous  Materials  Laws,  and there are no  circumstances  that may  prevent,
interfere  with, or make more  expensive the  Company's  full  compliance in the
future.  There is no Environmental Claim pending or threatened against, or which
has been made known to, the Company.

     (d)  Except as  described  in  Schedule  2.13,  during  the period the Real
Property has been held by the Company,  its  affiliates or its  predecessors  in
interest,  there have been no actions,  activities,  circumstances,  conditions,
events or incidents,  including,  without limitation, the generation,  handling,
transportation,  treatment,  storage, release, emission,  discharge, presence or
disposal  of  any  Hazardous  Materials,  that  could  form  the  basis  of  any
Environmental Claim against the Company.

     (e) Without in any way limiting the  generality of the  foregoing,  (i) all
underground  storage tanks, and the capacity,  uses, date of  installation,  and
contents of such tanks,  located on the Real Property are identified in Schedule
2.13,  (ii)  all  underground  storage  tanks  are in full  compliance  with the
Hazardous  Materials  Laws;  (iii) there is no asbestos  contained in or forming
part of any building, building component,  structure or office space of the Real
Property, and (iv) no polychlorinated  biphenyls have been used or stored on the
Real Property.

     2.14.  INSURANCE.  (a)  Schedule  2.14  contains an accurate  and  complete
description of all policies of property,  fire and casualty,  product liability,
workers' compensation, and other forms of insurance owned or held by the Company
relating  to the  Property  and the  business  conducted  by the  Company.  Such
description  provides  reasonably  material  details  concerning  such policies.
Copies of such policies have been delivered to HRT.

     (b) All  policies  described  in  paragraph  (a)  hereof  (i) are issued by
insurance  companies  reasonably believed by the Company to be financially sound
and  reputable,  (ii) are  sufficient  for  material  compliance  with all Legal
Requirements  and  contracts  to which the  Company is a party or by which it is
bound,  (iii) are valid,  outstanding,  and enforceable  policies,  (iv) provide
adequate insurance coverage for the assets and the operations of the Company for
all material risks  normally  insured  against by a person  carrying on the same
business or businesses  as the Company,  and (v) will not in any way be affected
by,  terminate,  or lapse by reason of,  the  transactions  contemplated  by the
Transaction Documents.

     (c) The Company has not  received,  (i) any notice of  cancellation  of any
policy  referred to in paragraph  (a) hereof or refusal of coverage  thereunder,
(ii) any notice  that any issuer of such policy has filed for  protection  under
applicable  bankruptcy laws or is otherwise in the process of liquidating or has
been liquidated,  or (iii) any other indication that such policies are no longer
in full  force or  effect  or that the  issuer  or any such  policy is no longer
willing or able to perform its obligations hereunder.

                                       19


     2.15. ABSENCE OF UNDISCLOSED LIABILITIES. (a) Except as and to the  extent
reflected  or  specifically  reserved  against  (which  reserves are adequate in
amount) in the  Company  Financial  Statements,  or in the notes to the  Company
Financial Statements for the periods then ended, the Company did not have at the
respective dates of the Company Financial Statements any material liabilities or
obligations of any nature (whether  accrued,  absolute,  contingent or otherwise
and whether due or to become due), except for liabilities which were incurred in
the  ordinary  course of business  consistent  with past  practice and have been
discharged  or paid in full  prior  to the  date  hereof.  Except  for  expenses
incurred in connection  with the  transactions  contemplated  by the Transaction
Documents,  since the date of the  Interim  Balance  Sheet,  the Company has not
incurred any liabilities or obligations (whether accrued,  absolute,  contingent
or otherwise) which (i) were not incurred in the ordinary course of business and
were in excess of $5,000  individually  (counting  liabilities  and  obligations
arising from one  transaction  or a series of  transactions  between the same or
related  parties,  and all periodic  payments under any agreement  providing for
periodic  payments,  as a  single  liability  or  obligation)  or (ii)  were not
incurred in the  ordinary  course of business and were taken  together  with all
other such  liabilities  and  obligations of the Company in excess of $10,000 in
the aggregate, or (iii) have a reasonable probability of resulting in any change
in or  effect  on the  business  of the  Company  that  is,  or with  reasonable
certainty might be, materially adverse to the business conducted by the Company.

     (b) Except as and to the  extent  reflected  or  disclosed  in the  Company
Financial  Statements or incurred  subsequent to the date of the Interim Balance
Sheet, in the ordinary course of business, or liabilities incurred in connection
with the  transactions  contemplated by the Transaction  Documents,  the Company
will not have at the date of the Closing any  liabilities  or obligations of any
nature (whether accrued, absolute, contingent or otherwise and whether due or to
become due) which might have a material adverse effect on the business conducted
by the Company.

     2.16. ABSENCE OF CERTAIN CHANGES. (a) Except as described in Schedule 2.16,
since the date of the Interim Balance Sheet, there has not been any change in or
effect on the  business  operations,  prospects,  assets,  or  condition  of the
Company that is, or might be,  materially  adverse to the business  conducted by
the Company,  and, to the Knowledge of the Company,  no fact or condition exists
or is reasonably  contemplated  or threatened  which the Company  believes has a
reasonable  probability  of resulting in any change in or effect on the business
conducted by the Company that is, or might be, materially adverse.

     (b) Except as  described  in Schedule  2.16,  since the date of the Interim
Balance  Sheet,  the Company has conducted its  businesses  only in the ordinary
course of business and there has not been any:

                                       20


               (i)  Change  in its authorized  or  issued  capital stock; grant 
of any stock  option or right to purchase  of its shares of capital  stock;
issuance of any security conv into such capital stock; grant of any registration
rights; purchase, redemption,  retirement or other acquisition by the Company of
any shares of any such capital stock;  or declaration or payment of any dividend
or other  distribution  or payment in respect of shares of capital  stock; 
 
               (ii) Amendment to the Company's Articles of Incorporation or 
By-Laws;

               (iii)  Payment or increase by the  Company of any bonuses,  
salaries,  or other  compensation to any director,  officer,  employee,  or
stockholder (except to directors,  officers, or employees in the ordinary course
of  business  consistent  with  past  practice)  or entry  into any  employment,
severance, or similar contract with any director, officer, or employee;
               
               (iv)   Adoption  of,  or  increase  in,  any  profit sharing,  
bonus, deferred  compensation,  savings,  insurance, pension,  retirement,  or 
other  employee  benefit plan for or with any employees of the Company;

               (v)  Damage, destruction, or loss to any  asset or property of 
the Company, whether or not covered by insurance, affecting  materially  and a
dversely the properties, assets,business, financial condition, or prospects of 
the Company,taken as a whole;

              (vi) Entry into, termination, or receipt of notice of termination 
of (i) any joint venture, credit, or similar agreement,  or (ii) any contract or
transaction involving a total remaining commitment by the Company of at least 
$5,000;

               (vii) Sale (other  than sales of inventory  in the ordinary 
course of business), lease, or other disposition of any asset or property of 
the Company or mortgage, pledge, or imposition of any lien or other  encumbrance
on any material asset or property of the Company,including, without limitation, 
the sale, lease, or other disposition of any Intellectual Property Assets;

               (viii) Cancellation or waiver of any claims or rights with a 
value to the Company in excess of $5,000;

               (xi) Conduct of business or entering into any transaction, other
than in the ordinary course of business of the Company

               (x) Material change in the accounting methods followed by the 
Company; and

                                       21


               (xi) Agreement or understanding, whether or not in writing, to do
any of the foregoing by the Company.

     2.17. LEGAL  PROCEEDINGS,  ETC. Except as described on Schedule 2.17, there
are not now,  and within the past three years  there have not been any  material
claims,  actions or  proceedings  pending,  or, to the Knowledge of the Company,
threatened,  relating to the Property or the  business  conducted by the Company
(or any of the Company's  officers,  directors,  employees or representatives in
connection  with the business  conducted by or any such  person's  activities on
behalf of the Company),  before any court or governmental body, United States or
foreign.  To the  Knowledge  of the Company,  within the past three  years,  the
Company  has  not  been  the  subject  of  any  material  investigation  by  any
governmental  body or agency  thereof in respect of the Property or the business
conducted by the Company.  Schedule 2.17 contains  complete  descriptions of all
complaints  against the Company in pending litigation related to the Property or
the  business  conducted  by the  Company.  There are no such  claims,  actions,
proceedings or investigations pending or, to the Company's Knowledge, threatened
challenging  the validity of the  transactions  contemplated  by the Transaction
Documents.  The Company is not now, and has not been, a party to any injunction,
order, or decree restricting the method of the conduct of the business conducted
by the Company.

     2.18. INTELLECTUAL  PROPERTY.  The Company has no  Intellectual  Property 
Assets which are material to the Company's operations.

     2.19.TAXES. The Company has timely filed all returns,declarations,reports,
information  returns and statements required to be filed by it in respect of any
Taxes and has paid all Taxes  currently  due and payable by it. No notice of any
imposed tax deficiency, assessment or levy has been received by the Company, and
there exists no basis for the assertion or  imposition  of any such  deficiency,
assessment  or levy.  The Company has duly withheld from each payment from which
such  withholding  is  required by law,  the amount of all Taxes  required to be
withheld  therefrom  and has paid the same (to the extent due), or otherwise set
aside, together with the employer's share of the same, if any, to the proper tax
receiving officers.  There are no tax liens on any of the assets of the Company,
and no basis exists for the  imposition  of any such liens.  The Company has not
filed a consent under Code Section 341(f) concerning  collapsible  corporations.
The Company has made no payments,  is not  obligated to make any payments nor is
it a party to any agreement that under certain  circumstances  could obligate it
to make any payments  that will not be deductible  under Code Section 280G.  The
Company has no liability for the Taxes of any person under  Treasury  Regulation
Section 1.1502-6 (or any similar provision of state, local or foreign law), as a
transferee  or  successor,  by contract or  otherwise.  Except as  described  in
Schedule  2.19, no Internal  Revenue  Service audit of the Company is pending or
threatened,  and the results of any completed audit are reflected in the Company
Financial Statements.

     2.20. NO BROKERS OR FINDERS.  All  negotiations  on the part of the Company
related to this Agreement have been  accomplished  solely by the Company without
the assistance of any person employed as a broker or finder. The Company has not
retained,  nor  otherwise  utilized,  the  services  of any  broker or finder in
connection with the transaction  contemplated by this Agreement. The Company has
not done anything to give rise to any valid claims against HRT,  Acquisition Sub
or the Company for a brokerage commission, finder's fee, or any similar charge.

                                       22


     2.21. EMPLOYEE  MATTERS. The Company has no employees or any  employment,  
bonus, profit-sharing, percentage compensation, deferred compensation,  pension 
contracts and agreements,or any consulting agreements to which the Company is a 
party.

     2.22. LABOR MATTERS.  The Company has no collective  bargaining  agreements
with any labor union and there are no current  negotiations  with a labor union.
The Company is in substantial  compliance  with all applicable  laws  respecting
employment  and  employment  practices,  terms and  conditions of employment and
wages and hours,  and is not engaged in any unfair labor  practice.  The Company
will advise HRT and  Acquisition Sub of any such labor dispute which shall arise
before the Closing.

     2.23. EMPLOYEE BENEFIT PLANS; ERISA. The  Company  does not have any bonus,
deferred  compensation,   hospitalization  or  other  medical,  stock  purchase,
pension,  life  or  other  insurance,   profit-sharing  or  retirement  plan  or
arrangement, and each other employee benefit plan or arrangement, of the Company
for or on behalf of employees  of the Company  employed in  connection  with the
business conducted by the Company.

     2.24. FULL  DISCLOSURE.  As of the Closing  Date,  the  Company  will have
disclosed all events,  conditions,  and facts materially  affecting the business
and  prospects  of the Company.  The Company has not  withheld  knowledge of any
events,  conditions,  and  facts  that it has  reasonable  ground  to  know  may
materially  affect  the  business  and  prospects  of the  Company.  None of the
representations  and  warranties  made by the Company in this  Agreement  or set
forth in any other  instrument  furnished to HRT and/or  Acquisition Sub contain
any untrue statement of a material fact, or fails to state a material fact.

                                   ARTICLE III
                                          
                   ITEMS TO BE FURNISHED TO HRT BY THE COMPANY

     3.1. DOCUMENTS TO BE  DELIVERED. Within 15 days after the date of this 
Agreement,  the Company shall deliver to HRT for its review the following items:

         (a) True, correct, complete and legible copies of all Tenant Leases if 
any, Business Agreements, Warranties, Permits, reports,and Engineering Documents
if any, in the Company's possession or control;

                                       23


         (b) A true,complete and correct rent roll of all existing Tenant 
Leases, if any,  setting forth with respect to each of the Tenant Leases:  
(i) the premises covered;  (ii) the date of the Tenant Lease and all amendments 
and modifications thereto; (iii) the name of the Tenant,  licensee or occupant; 
(iv) the term; (v) the rents and other charges payable thereunder; (vi) the 
rents or other charges in arrears or prepaid thereunder, if any, and the period 
for which any such  rents and other  charges  are in  arrears  or have been
prepaid; (vii) the nature and amount of the security deposits thereunder; if any
(viii) options to renew or extend  contained in the Tenant Lease;  (ix) any free
rent, concessions,  allowances, rebates or refunds to which the Tenant, licensee
or occupant may have been or be  entitled;  (x)  certification  that no disputes
exist or claims of breach on the part of the Company;  (xi) the status of Tenant
improvements to be performed by the Company;  and (xii) the nature and amount of
any commissions payable with respect thereto;
                  
          (c) True, correct, complete and legible  copies of tax  statements  or
assessments for all real estate and personal property taxes assessed against the
Property for the current and three prior calendar years;

          (d) True,  correct, complete and legible  copies of all Business  
Agreements  to which the Company or the Property are subject;

          (e) True,  correct,  complete and legible copies of all existing fire 
and extended coverage insurance policies and any other insurance policies 
pertaining to the Property;

          (f) A complete, itemized and detailed inventory of the Personal 
Property;

          (g) True,  correct,  complete and legible copies of all instruments  
evidencing,  governing or securing the payment of any loans secured by the 
Property or related thereto;

          (h) A complete and detailed  description  of all machinery, tools and 
equipment, in which the Company has a leasehold interest, with a description of 
each interest;

          (i) List of all employees  of the  Company  as of the date of this  
Agreement,  their  job  titles,  annual  rates  of  compensation,  accrued
vacation,  holiday pay and sick leave as of the Closing  Date,  and other fringe
benefits,  if any, and a description of any severance pay arrangements,  if any,
and the amounts  payable with respect to such accrued  vacation,  holiday pay or
sick leave and the rate at which such  accrued  vacation,  holiday  pay and sick
leave accrues;

          (j) A list of all bank accounts of the Company;

          (k) A Phase I Environmental  Assessment  dated no earlier than
January 1, 1996, together with true, correct, complete and legible copies of any
and all other environmental  studies or impact reports relating to the Property,
if any, in the Company's possession or control,  and any approvals,  conditions,
orders or declarations  issued by any  governmental  authority  relating thereto
(such  studies  and  reports  shall  include,  but not be  limited  to,  reports
indicating  whether  the  Property  is or has  been  contaminated  by  Hazardous
Materials;

                                       24


          (l) True, correct,  complete and legible copies of any and all
litigation files with respect to any pending  litigation and claim files for any
claims made or threatened,  the outcome of which might have an adverse effect on
the Property or the use and operation of the Property. The Company may make such
files available for inspection and copying by HRT at the Property;

          (m) Legible  copies of any survey and title  policy  relating to the  
Property  existing in the possession of the Company as of the date of execution 
of this Agreement; and

         (n) The Company  Disclosure  Schedule, which shall be attached  hereto 
as an exhibit and incorporated herein by reference.

     3.2.  REVIEW BY HRT.  During the Review  Period,  HRT shall be  entitled to
review the Due Diligence  Materials  delivered by the Company to HRT pursuant to
the provisions of Section 3.1 above. If HRT shall,  for any reason in HRT's sole
discretion,   judgment  and  opinion  reasonably  exercised,  disapprove  or  be
dissatisfied  with any aspect of such  information,  or the  Property,  then HRT
shall be entitled to terminate  this  Agreement by giving written notice thereof
to the Company on or before the expiration of the Review Period,  whereupon this
Agreement  shall  automatically  be  terminated  and have no  further  force and
effect,  and  thereafter  no  party to this  Agreement  shall  have any  further
obligations  or  liabilities  to the  other  hereunder,  except  as set forth in
Section 12.2 hereof.  Alternatively,  HRT may give written  notice setting forth
any defect,  deficiency  or  encumbrance  and  specify a time  within  which the
Company may remedy or cure such default  (before or after the  expiration of the
Review Period).  If any defect,  deficiency or encumbrance,  so noticed,  is not
satisfied  or resolved  to the  satisfaction  of HRT, in HRT's sole  discretion,
within the time period  specified in the written  notice,  this Agreement  shall
automatically  terminate as provided in this Section. HRT agrees to maintain the
confidentiality  of all Due Diligence  Materials;  provided,  however,  that HRT
shall have the right to distribute Due Diligence  Materials to any person deemed
a  necessary  party  by HRT  to  include  but  not  limited  to  regulatory  and
governmental  agencies,  HRT's counsel,  accountants,  engineers,  underwriters,
underwriters' counsel and such others deemed necessary;  and provided,  further,
that upon  termination of this  Agreement or  consummation  of the Closing,  HRT
shall continue to hold all such Due Diligence  Materials  confidential except to
the extent  required by law to disclose such material or in defense of any cause
of action based upon such material.

     3.3. DELIVERY OF ADDITIONAL  DOCUMENTS.  Within 30 days after the date of 
this Agreement, the Company shall  deliver or cause to be delivered to HRT,  the
Title  Commitment,  Exception  Documents,  Survey,  and Search Reports.

                                       25


     3.4.  REVIEW BY HRT OF  ADDITIONAL  DOCUMENTS.  HRT shall have the right to
review the Title Commitment,  Exception Documents, Search Reports and Survey for
a period of 30 days from the date of HRT's receipt of the last of such items. In
the event any matters  appear therein that are  unacceptable  to HRT, HRT shall,
within said 30-day period,  notify the Company in writing of such fact. Upon the
expiration  of said  30-day  period,  HRT shall be deemed to have  accepted  all
exceptions to title  referenced in the Title Commitment and all matters shown on
the Survey except for matters which are the subject of a notification made under
the preceding  sentence,  and such accepted  exceptions shall be included in the
term Permitted Exceptions as used herein;  provided,  however,  that in no event
shall  any of the  items  listed on  Schedule  B-1 or C of the Title  Commitment
constitute  Permitted  Exceptions  for  purposes  hereof.  In the event that HRT
objects to any such matters within the 30-day Review  Period,  the Company shall
have 30 days from receipt of such notice  within which to  eliminate,  modify or
insure over any such  unacceptable  exceptions  or items.  In the event that the
Company is unable to eliminate, modify or insure over such unacceptable items to
the  satisfaction of HRT on or before the expiration of said 30-day period,  HRT
may either (a) waive such objections and accept title to the Property subject to
such unacceptable  items (which items shall then be deemed to constitute part of
the Permitted Exceptions),  or (b) terminate this Agreement by written notice to
the Company, whereupon this Agreement shall automatically be terminated and have
no further force and effect, except as set forth in Section 12.2 hereof.

     3.5. MODIFICATION  OF  DOCUMENTS. In the event that at any time  the  Title
Commitment,  Exception  Documents,  Survey or Search Reports are modified (other
than  the  deletion  or  elimination  of any  item as to  which  HRT has made an
objection),  HRT shall have the right to review and  approve or  disapprove  any
such  modification and to terminate this Agreement in the event that the Company
is unable to eliminate any such matters to the satisfaction of HRT in accordance
with the provisions of Section 3.4 above,  except that HRT's Review Period as to
such  additional  items  shall be for a period  expiring on the date that is the
earlier  to occur of (a) 15 days  following  the date of HRT's  receipt  of such
modification,  and (b) the Closing Date, and all other time periods  referred to
in Section 3.4 shall expire on the date that is the earlier of (i) the final day
of the specified time period as set forth therein, and (ii) the Closing Date.


                                  ARTICLE IV                                 

          REPRESENTATIONS AND WARRANTIES OF HRT AND ACQUISITION SUB

     4.1.GENERAL STATEMENT. HRT and Acquisition Sub represent and warrant to the
Company  that  to the  Knowledge  of HRT  and  Acquisition  Sub  the  statements
contained  in this  Article IV are correct  and  complete as of the date of this
Agreement  and will be correct and  complete on and as of the Closing (as though
made then and as though the date of  Closing  were  substituted  for the date of
this  Agreement  throughout  this  Article  IV),  except as set forth in the HRT
Disclosure  Schedule  delivered by HRT and Acquisition  Sub to the Company.  The
survival of all such  representations and warranties shall be in accordance with
Section 9.1 hereof.

                                       26


     4.2. ORGANIZATION  AND  STANDING.  HRT is a  corporation  duly  organized,
validly existing,  and in good standing under the laws of the State of Maryland,
with corporate  power to own its property and carry on its business as it is now
being conducted. Copies of the Articles of Incorporation of HRT, certified as of
a recent date by the  Department  of  Assessments  and  Taxation of the State of
Maryland and delivered to the Company,  are complete and accurate as of the date
of  this  Agreement.  HRT  is  qualified  to  transact  business  as  a  foreign
corporation and is in good standing in all  jurisdictions in which its principal
properties are located.

     4.3. SUBSIDIARIES. Acquisition Sub is a corporation duly organized, validly
existing,  and in good standing under the laws of the  Commonwealth of Virginia,
with corporate  power to own its property and carry on its business as it is now
being  conducted.  Copies of the Articles of  Incorporation  of Acquisition Sub,
certified as of a recent date by the State  Corporation  Commission  of Virginia
and  delivered to the Company,  are complete and accurate as of the date of this
Agreement.  Acquisition Sub is not required to be qualified to transact business
as a foreign  corporation in any  jurisdiction  other than the  Commonwealth  of
Virginia.  HRT  owns  all  of  the  issued  and  outstanding  capital  stock  of
Acquisition Sub.

     4.4. AUTHORIZATION  OF THE  TRANSACTION. HRT and Acquisition Sub have all
requisite corporate power and authority to enter into the Transaction Documents,
to  consummate  the  transactions  contemplated  thereby,  and to  carry  on the
business of the Company  following  the Closing.  The Board of Directors of HRT,
acting for itself and as the sole  stockholder of Acquisition  Sub, has approved
the Merger and the Transaction  Documents and determined that the Merger is fair
to and in the best interests of HRT and  Acquisition  Sub. No other corporate or
legal proceedings on the part of HRT or Acquisition Sub are necessary to approve
and authorize the  execution and delivery of the  Transaction  Documents and the
consummation of the transactions contemplated thereby.

     4.5.VALID AND BINDING AGREEMENT.This Agreement has been and, on the Closing
Date, the Transaction  Documents will have been,  duly and validly  executed and
delivered by HRT and  Acquisition  Sub and this Agreement is and, on the Closing
Date, each Transaction  Document will be, a valid and binding  obligation of HRT
and Acquisition Sub enforceable in accordance with its terms.

     4.6. COMPLIANCE  WITH  LAW. The execution and delivery of the  Transaction
Documents,  the  consummation of the transactions  contemplated  thereby and the
fulfillment of and compliance  with the terms and provisions  thereof do not and
will not (a) violate any judicial or administrative  order,  award,  judgment or
decree  applicable  to HRT or  Acquisition  Sub or (b) conflict  with any of the
terms,  conditions or provisions of the Articles of  Incorporation or By-laws of
HRT or Acquisition Sub.

     4.7.  SEC  DOCUMENTS.  Within  15 days of the date  hereof,  HRT will  make
available  to the  Company  a true  and  complete  copy  of  each of the HRT SEC
Documents.  Such  documents  are  all  the  documents  (other  than  preliminary
material)  that HRT was  required  to file with the SEC since such  date.  As of
their respective dates, the HRT SEC Documents  complied in all material respects
with the  requirements  of the Securities Act or the Securities and Exchange Act
of 1934, as amended,  as the case may be, and the rules and  regulations  of the
SEC  thereunder  applicable  to such HRT SEC  Documents  and none of the HRT SEC
Documents  contained any untrue statement of a material fact or omitted to state
a  material  fact  required  to be  stated  therein  or  necessary  to make  the
statements  therein,  in light of the circumstances  under which they were made,
not misleading.

                                       27


     4.8. STOCK  EXCHANGE  LISTING.  On the Closing Date, the HRT Merger Shares
will have been approved for listing on the New York Stock Exchange upon 
official notice of issuance.

     4.9. STATUS OF HRT MERGER SHARES. On and after the Effective Date, upon due
and proper  exchange of Company  Stock  therefor,  the HRT Merger Shares will be
validly authorized,  duly issued,  fully paid and nonassessable.  

     4.10. BROKERS.  HRT has not retained nor otherwise utilized the services of
any broker or finder in connection  with the  transaction  contemplated  by this
Agreement. Neither HRT nor Acquisition Sub has done anything to give rise to any
valid claims  against the Company for a brokerage  commission,  finder's fee, or
any similar charge.
                                
                                 ARTICLE V                                   

                          COVENANTS OF THE COMPANY

     5.1. CONDUCT OF BUSINESS IN ITS  ORDINARY  COURSE.  The Company  covenants 
and agrees with HRT and/or Acquisition Sub, from the date of this Agreement 
until the Closing Date or earlier termination of this Agreement:

     (a)  The Company shall:(i) operate the Property in the ordinary  course of 
business  consistent  with reasonable and prudent business practices; (ii) enter
into no new Tenant  Leases except as shall be approved in writing by HRT; 
(iii) grant no rent concessions or special  termination terms to any Tenants;  
(iv) not collect rents in advance for more than one month; and (v) fully 
maintain, repair and replace the Property, all Improvements, landscaping and 
other appurtenances in good condition and repair.

     (b)  HRT  shall be entitled  to  make all inspections or investigations  
desired by HRT with respect to the Property or any portion thereof,and shall
have complete physical access to the Property and each of the leased premises 
located thereon,  which access shall not unreasonably  interfere with Tenants 
in possession.

                                       28


     (c) The  Company  shall cause to be  maintained  in full force fire  and  
extended  coverage  insurance  upon  the its  assets, including  the Property,  
and public  liability  insurance  with respect to damage or injury to persons or
property occurring on or relating to operation of the Property in at least 
such amounts as are maintained  by the  Company  on the date of this Agreement.

     (d) The Company  shall pay when due all bills and  expenses of the Company 
and the Property. The Company shall not  voluntarily  enter into or assume any 
new  contracts or obligations  which are in addition to or different from those 
furnished and disclosed to HRT and reviewed and approved pursuant to 
Article III.

      (e) The Company shall not create or voluntarily permit to be created any 
liens, easements or other conditions  affecting any portion of its assets,  
including the Property, or the uses thereof without the prior written consent 
of HRT.

      (f) The Company will pay,as and when due, all  interest and principal and 
all other charges  payable under any  indebtedness  of the Company from the date
hereof until Closing and will not suffer or permit any default or amend or 
modify the documents evidencing or securing  any such indebtedness without the 
prior written consent of HRT.

      (g)  The  Company  will: (i) give to HRT, its  attorneys, accountants and 
other representatives,  during normal business hours and as often as may be
requested,  full  access to the  Property  and to all books,  records  and files
relating to the Company and the  Property;  (ii) furnish to HRT all  information
concerning  the  Property  which  HRT,  its  attorneys,   accountants  or  other
representatives  will  reasonably  request;  (iii) to  extent  in the  Company's
possession  or control,  furnish to HRT, its  attorneys,  accountants  and other
representatives,  if HRT deems necessary, all information necessary for an audit
to be conducted  with respect to the  operations of the Company and the Property
for the 36 month period preceding the Closing,  including,  without  limitation,
the general ledger,  check register,  cash receipts and  disbursement  journals,
bank  statements,  rent  rolls,  tenant  leases,  invoices  relating  to  direct
operating  expenses,  ad valorem tax statements,  payroll  records,  schedule of
accounts payable, schedule of accounts receivable;  (iv) cooperate with HRT, its
attorneys, accountants and other representatives, if HRT deems necessary, in the
conducting  of such  audit  and will  execute  and  deliver  to the  accountants
conducting such audit such statement as may be reasonably  required  addressing,
among other things, any irregularities or undisclosed claims or liabilities that
could have a material  effect on the results of the audit;  and (v) consult with
HRT at all times  until the  Closing  Date with  respect  to the  operation  and
conduct of the Company's business.

      (h) The Company  shall not remove any Personal  Property  from the 
Property or Improvements  without replacing same with substantially  similar
items of equal or greater value.

                                       29


      (i) The Company shall not, directly or indirectly, solicit or encourage 
(including by way of furnishing any nonpublic  information  concerning
the  business,  properties  or  assets  of  the  Company),  or  enter  into  any
negotiations or discussions  concerning,  any  Acquisition  Proposal (as defined
below).  The Company  will  notify HRT  promptly by  telephone,  and  thereafter
promptly  confirm in writing,  if any such information is requested from, or any
Acquisition  Proposal  is  received  by, the  Company.  In the event the Company
receives an Acquisition  Proposal,  the Company shall promptly  inform the maker
thereof  of the  existence  of the  provisions  of this  Section  5.1(i) and the
Company or its board of directors  shall reject such  Acquisition  Proposal.  As
used in this Agreement, Acquisition Proposal shall mean any proposal received by
the Company (or any of its  affiliates,  officers  or  directors),  prior to the
Closing for the acquisition, by sale, merger or otherwise, of any of the assets,
or any portion thereof, or of the business conducted by the Company.

     5.2. SATISFY  CONDITIONS  PRECEDENT. The Company will use its best efforts 
to perform and fulfill all obligations on its part to be performed and fulfilled
under this Agreement and to satisfy all conditions precedent contained in this 
Agreement.

     5.3. ACCESS TO INFORMATION AND DOCUMENTS.DOCUMENTS

     (a) The Company will afford the officers and representatives of HRT, from 
the date of this Agreement until  consummation  of the Merger,  full access
during normal  business hours to all  properties,  books,  accounts,  contracts,
commitments, and any other records of any kind of the Company. Sufficient access
shall be allowed to provide HRT with full opportunity to make any  investigation
it desires to make of the  Company,  and to keep  itself  fully  informed of the
affairs of the Company.

     (b) In addition, the Company will permit HRT to make extracts or copies 
of all such books, accounts, contracts, commitments, and records, and to 
furnish to HRT within  five days after  demand,  any  further  financial  and 
operating data of the Company as HRT reasonably requests.

     (c) HRT will use any  information  obtained under this Section only for its
own purposes in connection with the consummation of the transaction
contemplated by this Agreement, and will not divulge the information to any
other person.

     5.4.DISSENTERS. The Company shall promptly notify HRT of the receipt by the
Company of each written  notice from any  stockholder  of the Company to dissent
from the Merger.  The Company  shall comply with all  provisions of the Virginia
Stock  Corporation  Act  relating to  stockholders  of the  Company  entitled to
dissent from the Merger,  including appropriate notice in the Proxy Statement of
the right to dissent as  provided  in Section  13.1-732  of the  Virginia  Stock
Corporation Act.

     5.5. EARNINGS AND PROFITS  ANALYSIS. The Company shall make an analysis of 
the  Company's  books and  records to  determine  the  amount,  if any,  of
accumulated and/or current earnings and profits,  within the meaning of Sections
312 and/or 316(a) of the Code.  Prior to the Closing Date, the Company will make
one or more  special  distributions  or  dividends  of the  amount  of any  such
earnings and profits.  Such distributions or dividends shall reduce the Value of
the Company, determined in accordance with Exhibit B.

                                       30


     5.6. TAXES. Lewis-Gale Clinic, LLC shall be responsible for and shall 
indemnify  and hold the  Company  and HRT  harmless  from and  against any
liability  for  federal,  state  or  local  income  taxes  (including,   without
limitation, interest and penalties imposed thereon) as well as legal, accounting
and other expenses;  provided,  however,  that the Company and HRT shall be paid
their legal,  accounting and other expenses only if Lewis-Gale Clinic, LLC shall
not have paid such  liabilities  within 30 days of being  notified in writing of
the same  sustained  by HRT or the  Company  to the extent  that such  liability
relates to any tax period ending prior to or on the Closing Date.

     5.7. NEGATIVE  COVENANTS.  Except with the prior  written  consent of HRT, 
the  Company,  its agents, employees, and directors will not:

     (a) Incur any liabilities other than current liabilities incurred in the 
ordinary course of business;

     (b) Incur any mortgage, lien, pledge,  hypothecation, charge, encumbrance, 
or restriction of any kind, except liens for taxes not due;
 
     (c) Become a party to any contract,or renew, extend, or modify any existing
contract, except in the ordinary course of business;

     (d) Make any capital expenditures,except for ordinary repairs,maintenance, 
and replacement;

     (e) Declare or pay any dividend on or make any other distribution to 
stockholders, except for payment of any special distributions or dividends of 
earnings and profits pursuant to Section 5.5;

     (f) Purchase, retire, or redeem any shares of its capital stock;

     (g) Issue or sell additional  shares of its capital stock,  whether or not 
such shares have been previously authorized or issued;

     (h) Issue or sell any  warrants, rights, or options to acquire  any shares 
of its capital stock;

     (i) Amend its Articles of Incorporation or Bylaws;

     (j) Pay or agree to pay any bonus, increase in compensation,  pension, or 
severance pay to any director, stockholder, officer, consultant, agent, or 
employee;

                                       31


     (k) Discharge or satisfy any lien or encumbrance,  nor pay any
obligation or liability, except current liabilities shown on the Interim Balance
Sheet,  or incurred  in the  ordinary  course of business  since the date of the
Interim Balance Sheet;

     (l) Merge or consolidate with any other entity;

     (m) Enter  into any  transactions  or take any acts that would  constitute 
a breach of the representations, and warranties contained in this Agreement; 
and 
     (n) Institute, settle, or agree to settle  any action or proceeding 
before any court or governmental body.


                              ARTICLE VI     

                            COVENANTS OF HRT

     6.1. CONDUCT OF BUSINESS  IN ITS  ORDINARY COURSE. HRT will carry on its  
business in substantially the same manner as before the date of execution of 
this Agreement.

     6.2. SATISFY  CONDITIONS  PRECEDENT.  HRT will use its best  efforts  to  
perform and fulfill all obligations on its part to be performed  and  fulfilled 
under this Agreement and to satisfy all conditions precedent contained in this 
Agreement.


                              ARTICLE VII                                

              CONDITIONS PRECEDENT TO OBLIGATIONS OF THE COMPANY

     7.1. CONDITIONS PRECEDENT TO CLOSING. The  obligations of the Company to 
consummate the Merger and the other transactions contemplated by the
Transaction Documents shall be subject to the conditions  precedent specified 
in this Article VII, unless waived by the Company.

     7.2.TRUTH OF REPRESENTATIONS AND WARRANTIES AND COMPLIANCE WITH COVENANTS  
The representations and warranties of HRT contained in this Agreement shall
be true and correct as of the  Closing  Date with the same effect as though made
on and as of the Closing  Date.  HRT shall have  performed all  obligations  and
complied  with all  covenants  required by this  Agreement  to be  performed  or
complied with by it prior to the Closing Date.  HRT shall deliver to the Company
a  certificate  dated as of the  Closing  Date and  signed by an officer of HRT,
certifying the truth and correctness of the representations and warranties.

                                       32


     7.3. REGISTRATION  STATEMENT.  The S-4  Registration  Statement  described
in  Article X  covering the issuance of the HRT Merger Shares shall have been 
declared  effective by the SEC and no stop order  suspending  its effectiveness 
shall have been issued by the SEC.

     7.4.NO RESTRICTIONS.No action, suit, or proceeding shall be pending before 
any court or quasi-judicial or administrative agency of any federal, state,
local,  or foreign  jurisdiction  wherein an unfavorable  injunction,  judgment,
order,  decree,  ruling, or charge would (i) prevent  consummation of any of the
transactions  contemplated by the Transaction Documents or (ii) cause any of the
transactions contemplated by the Transaction Documents to be rescinded following
consummation.

     7.5. TAX OPINION. The Company shall have received an opinion from Gentry, 
Locke, Rakes & Moore, the Company's counsel, to the effect that for federal
income tax  purposes:  (i) the Merger will  constitute  a  reorganization  under
Section 368(a)(1)(A) of the Code; (ii) no gain or loss will be recognized by the
Company on (a) the transfer of its assets in  constructive  exchange for the HRT
Merger  Shares  and  the  assumption  of the  Company's  liabilities  or (b) the
constructive   distribution   of  the  HRT  Merger   Shares  to  the   Company's
stockholders; (iii) no gain or loss will be recognized by any stockholder of the
Company on the exchange of shares of Company  Stock solely for HRT Merger Shares
(including,  without  limitation,  the  stockholder's  Custody  Shares  and  any
fractional share interest);  (iv) a stockholder's basis in the stockholder's HRT
Merger Shares (including,  without limitation, Custody Shares and any fractional
share  interest)  will be the same as the  stockholder's  basis in the shares of
Company Stock exchanged  therefor;  (v) a stockholder's  holding period for such
HRT Merger Shares will include the stockholder's  holding period for such shares
of Company Stock if they are held as a capital asset at the Effective  Time; and
(vi) a stockholder's receipt of cash in lieu of a fractional share of HRT Common
Stock  pursuant  to Section  1.6(d)  hereof  will be treated as received as full
payment in exchange for such fractional  share pursuant to Section 302(a) of the
Code.

     7.6. OPINION  FROM  COUNSEL TO HRT. HRT shall  deliver  to the  Company an 
opinion of counsel to HRT, dated the Closing Date, in form and substance 
acceptable to the Company.

     7.7. STOCKHOLDER  APPROVAL.  The  stockholders  of the  Company,  at a  
meeting of the  stockholders properly  held, shall have approved the Merger and 
adopted this Agreement and the other Transaction Documents by the vote of not 
less than 66 2/3% of the votes entitled to be cast.

     7.8. LENDER CONSENT. Each of the holders of any indebtedness which is 
secured by a lien against the Property  shall have,  in form  acceptable to
the  Company,  consented  in writing  to the  consummation  of the  transactions
contemplated  by this  Agreement  and  agreed (i) that the  consummation  of the
transactions  contemplated by this Agreement will not constitute a default under
the documents  evidencing or securing such  indebtedness;  (ii) to permit HRT to
prepay the outstanding  balance of the  indebtedness  secured by such liens at a
point in time  substantially  contemporaneous  with  the  Closing,  without  the
payment of any prepayment  fee or penalty in connection  therewith and, (iii) to
deliver a  recordable  release  of all such  liens to HRT upon  receipt  of such
prepayment.

                                       33


     7.9. LEASE AND GUARANTY AGREEMENT EFFECTIVE. Acquisition Sub shall have
entered into the Lease Agreements,  the Lease Administration  Agreement and
the Control and Support Agreement,  each with Lewis-Gale Clinic,  LLC, and shall
have entered into the Guaranty Agreement with PhyCor, Inc.

                                  ARTICLE VIII                             

                    CONDITIONS PRECEDENT TO OBLIGATIONS OF HRT

     8.1. CONDITIONS PRECEDENT TO CLOSING. The obligations of HRT to consummate 
the Merger and the other transactions contemplated by the Transaction Documents 
shall be subject to the conditions  precedent specified in this Article VIII, 
unless waived by HRT.

     8.2.TRUTH OF REPRESENTATIONS AND WARRANTIES AND COMPLIANCE WITH COVENANTS  
The  representations  and  warranties  of the  Company  contained  in  this
Agreement shall be true and correct as of the Closing Date, with the same effect
as though made on and as of the Closing Date.  The Company shall have  performed
all obligations and complied with all covenants required by this Agreement to be
performed or complied  with by it prior to the Closing  Date.  The Company shall
deliver to HRT a certificate  dated the Closing Date and signed by an officer of
the Company,  certifying the truth and  correctness of the  representations  and
warranties.

     8.3. STOCKHOLDER APPROVAL.The stockholders of the Company, at a meeting of 
the stockholders properly held, shall have approved the Merger and adopted this 
Agreement and the other Transaction  Documents by the vote of not less than
66 2/3% of the votes  entitled  to be cast.  No more than  five  percent  of the
stockholders  of the Company  shall have  dissented  pursuant to the  applicable
provisions of the Virginia Stock  Corporation Act and elected to receive cash in
lieu of the Merger Shares.

     8.4.REGISTRATION  STATEMENT  EFFECTIVE. The S-4 Registration  Statement 
covering the issuance of the HRT Merger  Shares shall be effective  under the  
Securities Act and no stop order suspending its effectiveness shall have been 
issued by the SEC.

     8.5. LEASE AND GUARANTY AGREEMENT EFFECTIVE.  Acquisition Sub shall have
entered into the Lease Agreements, the Lease Administration  Agreement and
the Control and Support Agreement, each with Lewis-Gale Clinic, LLC, and shall
have entered into the Guaranty Agreement with PhyCor, Inc.

                                       34


     8.6. ACCEPTABILITY  OF PAPERS  AND  PROCEEDINGS. To the  extent requested  
by HRT,the form and substance of all papers and proceedings under this 
Agreement shall be acceptable to counsel to HRT.

     8.7. OPINION FROM COUNSEL TO THE COMPANY. The Company shall deliver to HRT 
an opinion, dated the Closing Date, of Gentry, Locke, Rakes & Moore, counsel to 
the Company, in form and substance acceptable to HRT.

     8.8. TITLE INSURANCE POLICIES AND CONFIRMATION. The Company shall  deliver 
to HRT title insurance policies and supplemental confirmation  from the issuing 
company that the Land described in the policies and owned by the Company is 
covered by the policies.

     8.9. RESIGNATIONS  OF  OFFICERS AND DIRECTORS. The Company shall deliver  
to  HRT  the  written resignations of all officers and directors of the Company.

     8.10. AGREEMENT OF AFFILIATES.  The Company shall deliver to HRT, no later 
than ten days after the date of this Agreement,  a letter  identifying each
person whom the Company  reasonably  believes is an affiliate of the Company for
purposes of Rule 145 under the  Securities  Act. The Company  shall use its best
efforts to cause each person who is identified as an affiliate in such letter to
deliver to HRT,  not later than the date on which the Merger is  approved by the
stockholders of the Company, a written  agreement,  substantially in the form of
Exhibit E hereto, providing that such person will not sell, pledge, transfer, or
otherwise  dispose  of the shares of Company  Common  Stock held by such  person
except as contemplated by this Agreement and will not sell, pledge, transfer, or
otherwise  dispose  of the  shares of HRT Common  Stock to be  received  by such
person upon  consummation  of the Merger  except in compliance  with  applicable
provisions of the Securities Act and the rules and regulations  thereunder.  The
Surviving Corporation shall not be required to maintain the effectiveness of the
S-4  Registration  Statement under the Securities Act for the purposes of resale
of the HRT Common Stock by such affiliates.

     8.11. NO  RESTRICTIONS.  No action,  suit, or proceeding shall be pending 
before any court or quasi-judicial or administrative agency of any federal,
state,  local,  or  foreign  jurisdiction  wherein  an  unfavorable  injunction,
judgment, order, decree, ruling, or charge would (i) prevent consummation of any
of the transactions contemplated by the Transaction Documents, (ii) cause any of
the  transactions  contemplated  by the  Transaction  Documents  to be rescinded
following  consummation,  (iii)  affect  adversely  the  right  of  HRT  to  own
Acquisition Sub following the consummation of the  transactions  contemplated by
the Transaction Documents, or (iv) affect adversely the right of Acquisition Sub
to own its assets and to operate its businesses following the Merger.


     8.12. NO MATERIAL CHANGES TO PROPERTY. 

                                       35


     (a) No material or substantial change shall have occurred with respect to 
the condition, financial or otherwise, of the Property.

     (b) Neither the  Property  nor any  material  part  thereof or interest  
therein shall have been taken by execution or other process of law in any action
prior to the Closing Date.

     (c) The Company shall have obtained  nd  delivered to HRT a current report,
dated no more than ten days prior to this Agreement, from a licensed pest 
control company reasonably  acceptable to HRT, and which must show the Property
to be free of all  termite,  or other  destructive  insect and pest infestation,
dry rot, fungus or other destructive agency infestation.

     (d) HRT shall have  satisfactorily completed an inspection of the Property 
with respect to the physical condition thereof by agents or contractors selected
by HRT.

     (e) HRT  shall  have  received,  in form  acceptable  to HRT, evidence  of 
compliance by the  Property  with  all building  codes, zoning ordinances  and 
other governmental entitlements materially necessary for the operation of the 
Property for the current and intended  use,  including  without limitation,
certificates of occupancy, healthcare provider permits and agreements, Medicare 
and Medicaid  approvals,  licenses and such other permits, licenses,  approvals,
agreements and authorizations as are required for the operation of the Property 
for the current and intended use.

     (f) All necessary approvals, consents, estoppel certificates and the like  
of third  parties to the  validity and effectiveness of the transactions 
contemplated hereby have been obtained.

     (g) HRT is reasonably satisfied that the Property is sufficient and 
adequate for the Company to carry on the business now being conducted thereon 
and the Property is in good condition and repair as reasonably required for the 
proper operation and use thereof in compliance with applicable laws and the 
requirements of applicable accreditation and licensing authorities.

     (h) HRT shall have received from the Company written  evidence reasonably  
satisfactory  to HRT's counsel  from  which  it may be  essentially concluded 
that the Property and the buildings and  Improvements  located thereon and the 
current use thereof are in compliance with applicable  zoning ordinances and 
bylaws and that the same does not violate  any other land use control laws,
ordinances, bylaws, rules and regulations applicable thereto.

     (i) HRT shall have received, at the Company's expense,a Phase I 
environmental site assessment report covering the Property in form and content
reasonably acceptable to HRT.

                                       36


     (j) No material portion of the Property shall have been destroyed by fire 
or casualty.

     (k) No condemnation, eminent domain or similar proceedings shall have been 
commenced or threatened with respect to any material portion of the Property.

     (l) HRT shall have  received  from the  Company  certification that the  
Company  has  purchased  the Property  and has all right, title and interest in 
such Property necessary to complete the transactions contemplated by this 
Agreement.

     8.13.  EARNINGS AND PROFITS.  HRT shall have received a certificate, dated 
the Closing Date, from the chief  accounting  officer of the Company to the
effect that  immediately  prior to the Effective  Time, the Company did not have
accumulated  and/or current  earnings and profits within the meaning of Sections
312 and/or 316(a) of the Code.

     8.14. LENDER CONSENT.  Each of the holders of any indebtedness  which is 
secured by a lien against the Property  shall have,  in form  acceptable to
HRT, consented in writing to the consummation of the transactions  contemplated
by this  Agreement  and agreed  (i) that the  consummation  of the  transactions
contemplated by this Agreement will not constitute a default under the documents
evidencing  or  securing  such  indebtedness;  (ii) to permit  HRT to prepay the
outstanding balance of the indebtedness secured by such liens at a point in time
substantially  contemporaneous  with the  Closing,  without  the  payment of any
prepayment  fee or  penalty  in  connection  therewith  and,  (iii) to deliver a
recordable release of all such liens to HRT upon receipt of such prepayment.

                                   ARTICLE IX                                 

                      SURVIVAL OF WARRANTIES AND LIABILITY

     9.1. NATURE AND SURVIVAL OF REPRESENTATIONS AND WARRANTIES. All statements 
of fact contained in this  Agreement,  or in any  memorandum,  certificate,
letter,  document, or other instrument delivered by or on behalf of the Company,
HRT,  or   Acquisition   Sub  pursuant  to  this   Agreement   shall  be  deemed
representations  and warranties  made by any such party,  respectively,  to each
other party under this Agreement. The covenants, representations, and warranties
of the parties and the  stockholders  shall  survive the Closing  Date,  and all
inspections,   examinations,  or  audits  on  behalf  of  the  parties  and  the
stockholders for a period of two years following the Closing Date.

     9.2. INDEMNIFICATION.(a) Lewis-Gale Clinic, LLC hereby agrees to indemnify 
and defend, at its sole cost and expense,  and hold HRT and/or  Acquisition
Sub, their representatives,  agents,  successors and assigns,  harmless from and

                                       37


against and to reimburse  (and,  upon  request,  advance funds for expenses) HRT
and/or Acquisition Sub, their representatives,  agents,  successors, and assigns
from and against any and all claims, demands, actions, causes of action, losses,
damages,  liabilities,   costs  and  expenses  (including,  without  limitation,
reasonable costs of  investigation,  attorney's fees and court costs) of any and
every kind or character, known or unknown, fixed or contingent, asserted against
or incurred by HRT and/or  Acquisition  Sub at any time and from time to time by
reason of or arising out of (a) the breach of any  representation or warranty of
the Company set forth in Article II, (b) the failure of the Company, in whole or
in part,  to perform  any  obligation  required to be  performed  by the Company
pursuant  to this  Agreement  or (c)  the  ownership,  construction,  occupancy,
operation,  use and  maintenance of the Property prior to the Closing Date. This
indemnity applies, without limitation, to the violation on or before the Closing
Date of any Hazardous  Materials Law in effect on or before the Closing Date and
any and all matters  arising  out of any act,  omission,  event or  circumstance
existing  or  occurring  on or prior to the  Closing  Date  (including,  without
limitation,  the  presence  on the  Property  or release  from the  Property  of
Hazardous  Materials  disposed  of or  otherwise  released  prior to the Closing
Date),   regardless  of  whether  the  act,  omission,   event  or  circumstance
constituted  a  violation  of any  Hazardous  Materials  Law at the  time of its
existence or  occurrence.  The  provisions  of this Section 9.2 as to covenants,
agreements  and  indemnities  of the  Company  and a cause of  action  as to the
Company's  representation  and warranties  shall survive the consummation of the
Merger and shall continue thereafter in full force and effect for the benefit of
HRT and/or  Acquisition  Sub,  their  representatives,  agents,  successors  and
assigns.  Notwithstanding  any provision of this Agreement to the contrary,  HRT
and/or  Acquisition Sub may exercise any right or remedy HRT and/or  Acquisition
Sub may have at law or in equity  should  Lewis-Gale  Clinic,  LLC fail to meet,
comply with or perform its indemnity obligations required by this Section 9.2.

     b)  Whenever  any  claim  shall  arise  for   indemnification hereunder, 
each party seeking  indemnification  (each an Indemnified Party) shall send
Lewis-Gale  Clinic,  LLC a written notice (an Indemnity  Notice)  promptly after
such Indemnified Party has actual knowledge of the facts  constituting the basis
for such claim. Any Indemnity  Notice shall state the amount of  indemnification
sought and all material facts  constituting  the basis for such claim. A copy of
any  documentation  or other  information in the possession of such  Indemnified
Party which supports such claim shall be sent with the Indemnity Notice. Failure
to send an Indemnity Notice promptly shall not release  Lewis-Gale  Clinic,  LLC
from liability  hereunder,  unless such failure has a material adverse effect on
Lewis-Gale  Clinic,  LLC's  defense of the claims  which are the  subject of the
Indemnity Notice.

     (c) Any  Indemnified  Party in respect  of any claim,  action, suit or 
 proceeding  brought  by a third  party (a  Third  Party  Claim) shall,
promptly after receipt of notice of commencement of such claim, action, suit or
proceeding  in respect of which claim is to be made against  Lewis-Gale  Clinic,
LLC, send an Indemnity Notice to Lewis-Gale  Clinic, LLC together with copies of
all papers served on such Indemnified  Party in connection with such Third Party
Claim. Upon receipt of such an Indemnity Notice, Lewis-Gale Clinic, LLC shall be
entitled to participate in such Third Party Claim and, if it so elects, and upon
acknowledgment of such Indemnified Party's right to indemnification in the event
such claim or  proceeding is  successful,  to assume the defense  thereof,  with
counsel satisfactory to such Indemnified Party.

                                       38


     (d) Lewis-Gale Clinic,LLC shall defend, and shall have the right to settle,
claims  or suits  by  third  parties  that  are  payable  or that are to be
indemnified by Lewis-Gale  Clinic,  LLC under this Agreement.  Each  Indemnified
Party shall reasonably  cooperate with Lewis-Gale  Clinic, LLC in the defense of
claims and suits that Lewis-Gale Clinic, LLC defends, and Lewis-Gale Clinic, LLC
shall reimburse each Indemnified  Party for  out-of-pocket  expenses incurred in
cooperating at Lewis-Gale Clinic, LLC's request. The Indemnified Party shall not
settle  such  claims  or  suits  defended  by  Lewis-Gale  Clinic,  LLC  without
Lewis-Gale  Clinic,  LLC's  prior  consent,  which  shall  not  be  unreasonably
withheld.  An Indemnified  Party shall have the right to approve defense counsel
selected by Lewis-Gale  Clinic,  LLC, which  approval shall not be  unreasonably
withheld,  and the right fully to  participate in the defense of such claims and
suits at the  Indemnified  Party's sole cost and expense.  An Indemnified  Party
shall have the right to defend and settle claims or suits  without  prejudice to
any of their  rights  against  Lewis-Gale  Clinic,  LLC under this  Agreement if
Lewis-Gale Clinic, LLC declines or is unable to undertake the defense of a claim
or suit within a  reasonable  time after  Lewis-Gale  Clinic,  LLC's  receipt of
notice thereof.

     (e) Payment of any amounts due an Indemnified Party hereunder shall be made
by Lewis-Gale  Clinic, LLC by periodic payments during the course of  the   
investigation or defense (subject to repayment in the event indemnification was 
not required by this Section) in cash no later than the 30th day after the date 
an Indemnity Notice in respect of such amounts is received by Lewis-Gale 
Clinic, LLC.


                                   ARTICLE X                                   

                        REGISTRATION OF HRT MERGER SHARES

     10.1.REGISTRATION STATEMENT. HRT shall promptly prepare and file with the 
SEC a registration statement on Form S-4 (the S-4 Registration  Statement) 
relating to the issuance of the HRT Merger Shares. HRT shall use its best 
efforts to have the S-4 Registration  Statement  declared  effective under the 
Securities Act as promptly as practicable after such filing. HRT shall also
take any action  (other than  qualifying to do business in any  jurisdiction  in
which it is now not so  qualified)  required  to be taken  under any  applicable
state securities laws in connection with the issuance of HRT Merger Shares,  and
the Company shall furnish all information concerning the Company and the holders
of the Company Stock as may be reasonably  requested in connection with any such
action.

                                       39


     10.2. INFORMATION SUPPLIED. The Company shall cooperate with HRT in 
preparing the  S-4  Registration  Statement  and  shall  furnish  to HRT  all  
information  concerning  the  Company  required  to be  set  forth  therein
pursuant  to the  Securities  Act,  and the  applicable  rules  and  regulations
thereunder in connection with the  transactions  contemplated by this Agreement;
comply with any  reasonable  comments  or  requests  for changes of the SEC with
respect  thereto;  distribute  the final  Proxy  Statement  included  in the S-4
Registration  Statement to its  stockholders  in accordance with applicable law;
and take all such other  action  necessary or  appropriate  to obtain the lawful
approval by the  stockholders  of the Company of the Merger and the  Transaction
Documents.  The management of the Company shall recommend in the Proxy Statement
approval  by the  stockholders  of the  Merger  and the  Transaction  Documents.
Immediately prior to the initial mailing of the Proxy Statement, the Chairman of
the Board and  President and Treasurer of the Company shall certify to HRT that,
to the best of their Knowledge,  the information as to the Company  contained in
the Proxy  Statement  is true and complete in all  material  respects,  does not
contain  an untrue  statement  of a  material  fact and does not omit to state a
material fact required to be stated  therein or necessary to make the statements
therein,  in  light  of the  circumstances  under  which  they  were  made,  not
misleading.

     10.3. STOCKHOLDER MEETING. The  Company  shall  call a  meeting  of its  
stockholders  to be held as promptly as practicable  following the date the
S-4 Registration  Statement is declared  effective by the SEC for the purpose of
voting upon the Merger and the Transaction Documents, and related matters.

                              ARTICLE XI                                      

                         TAX STATUS OF MERGER

     11.1. REORGANIZATION. The  parties acknowledge that the Merger is intended 
to qualify as a reorganization under Section 368(a)(1)(A) of the Code, and each 
party agrees to report the Merger as such a reorganization for income tax 
purposes.

     11.2. ELECTION. Acquisition Sub and HRT agree to elect,  pursuant to IRS 
Notice 88-19 and any applicable regulations, to be subject to rules similar
to the rules of Section 1374 of the Code with  respect to all property  acquired
from the Company in the Merger.  The  stockholders  of the Company  shall not be
liable in any way for any tax or other liability  incurred by the Company,  HRT,
or Acquisition  Sub as a result of the failure to make such election,  nor shall
any Custody Shares be  distributed  to HRT or otherwise used to compensate  HRT,
Acquisition  Sub, or the Company for any tax or other  liability  resulting from
such failure.

     11.3. ACTIONS FOLLOWING CLOSING. HRT and Acquisition Sub represent and 
warrant that they have no plan or intention to, and agree that for at least
three  years  after the  Effective  Time they  shall use their  reasonable  best
efforts  not to,  take any action that would cause the Merger to fail to qualify
as a reorganization  under Section  368(a)(1)(A) of the Code, including (without
limitation)  causing or permitting:  (i) HRT to own less than 100% of the issued
and outstanding shares of capital stock of Acquisition Sub, (ii) Acquisition Sub
to liquidate or to merge into another corporation,  and (iii) Acquisition Sub to
voluntarily  sell or  otherwise  dispose of the  Property  or to cease using the
Property in its business.

                                       40


     11.4.REAL ESTATE INVESTMENT TRUST. HRT represents and warrants that it is a
real estate  investment trust under Section 856 of the Code and that Acquisition
Sub is a qualified  REIT  subsidiary  under Section  856(i)(2) of the Code.  HRT
covenants that it shall use its  reasonable  best efforts to continue to qualify
as a real  estate  investment  trust and to have  Acquisition  Sub  continue  to
qualify as a qualified REIT subsidiary for federal income tax purposes.


                                   ARTICLE XII                                

                                   TERMINATION

     12.1. OPTIONAL  TERMINATION. Subject to the  provisions  of  Section  12.2,
this Agreement may, by written notice given at or prior to the Closing in the 
manner hereinafter provided, be terminated:

     (i) By the mutual consent of HRT and the Company;

     (ii) By either party at any time after December 31, 1996, if, by that date,
any of the conditions to that party's obligations  to close  contained  herein  
shall not have been satisfied or waived;

     (iii) By either  HRT or the  Company, if a material default or breach shall
be made by the  other  party  hereto  with  respect  to the due and  timely
performance of any of its covenants and  agreements  contained  herein,  or with
respect to the accuracy of any of its representations  and warranties  contained
herein; or

     (iv) By either HRT or the Company, if any court of competent jurisdiction  
in the United  States or other United States governmental body shall have issued
an order, decree or ruling or taken any other action restraining, enjoining  or
otherwise  prohibiting  the  transactions  contemplated  by the Transaction
Documents and such order, decree, ruling or other action shall have become final
and non-appealable.

     (v) By HRT, if the Company has  suffered any damage, destruction, or loss, 
whether or not covered by insurance, that materially and adversely affects the 
Property, business, or financial condition of the Company.

                                       41


     (vi) By HRT pursuant to Sections 3.2 or 3.4 hereof.

     12.2. EFFECT OF TERMINATION. In the event this Agreement is terminated 
pursuant to Section 12.1, all further  obligations of the parties hereunder
(other  than the  obligations  set forth in  Sections  3.2 and 13.1 which  shall
survive)  shall  terminate;  provided,  however,  that, if this  Agreement is so
terminated  by a party  because one or more of the  conditions  to such  party's
obligations  hereunder is not satisfied as a result of the other party's willful
failure to comply with its  obligations  under this  Agreement,  the terminating
party's right to pursue all legal  remedies for breach of contract or otherwise,
including, without limitation, damages relating thereto, shall also survive such
termination unimpaired.

                              ARTICLE XIII                                   

                              MISCELLANEOUS

     13.1. EXPENSES.  HRT,  Acquisition,  Sub,  and the Company  will each bear 
its own costs and expenses incurred by it arising out of the Transaction 
Documents and the transactions contemplated thereby, including but not limited 
to all fees and expenses of its counsel and accountants.

     13.2. AMENDMENT.  This  Agreement  may be amended or  modified at any time 
and in any manner only by an instrument in writing executed by HRT, Acquisition 
Sub and the Company.

     13.3. MODIFICATIONS,  AMENDMENTS AND WAIVERS. At any time prior to the 
Closing, to the  extent  permitted  by law,  (i)  the  parties  hereto  may, by 
written agreement, modify, amend or supplement any term or provision of this 
Agreement and (ii) any term or  provision  of this  Agreement may be  waived by 
the party which is entitled to the benefits thereof.

     13.4. ASSIGNMENT.

     (a) Neither  this entire Agreement nor any right created by this Agreement 
shall be assignable by any party hereto without the prior written consent of the
other, except by the laws of succession.

      (b) Except as limited by the provisions of (a) above, this Agreement shall
be binding  on and inure to the benefit of the respective successors and assigns
of the parties, as well as the parties.

                                       42


      (c) Nothing in this Agreement, expressed or implied, is intended to confer
upon any person, other than the parties and their successors, any rights or 
remedies under this Agreement.

     13.5. NOTICES. Except as otherwise provided in this Agreement, any notice,
payment, demand or communication required or permitted to be given by any
provision of this Agreement shall  be duly given if delivered in writing
personally to the person to whom it is  authorized  to be given,  or if sent by
mail or overnight delivery service, telecopy, telex or telegraph, as follows:

     (a) In the case of HRT or Acquisition Sub, to:

         Healthcare Realty Trust Incorporated
         Attn: Roger O. West
         3310 West End Avenue, Fourth Floor
         Nashville, Tennessee  37203
         Telecopier No.:  (615) 269-8122

         with a copy to:

         Theodore W. Lenz
         Waller Lansden Dortch & Davis
         511 Union Street, Suite 2100
         Nashville, Tennessee  37219
         Telecopier No.:  (615) 244-6804

         with a copy to:

         Richard D. Bird
         Baker, Donelson, Bearman & Caldwell
         511 Union Street, Suite 1700
         Nashville, Tennessee  37219
         Telecopier No.:  (615) 726-0464

     (b) In the case of the Company, to:

         Lewis-Gale Building Corporation
         Attn: L. B. Brooks, FACMPE
         President and Chief Executive Officer
         1802 Braeburn Drive
         Salem, Virginia  24153
         Telecopier No.:  (540) 989-0879

         with a copy to:
         Bruce C. Stockburger, Esq.
         Gentry, Locke, Rakes & Moore
         10 Franklin Road, S.E.
         P.O. Box 1018
         Roanoke, Virginia  24005
         Telecopier No.:  (540) 983-9400

                                       43


Any such  notice  shall be  deemed to be given as of the date so  delivered,  if
delivered  personally,  by telecopy,  telex or  telegraph,  or as of the date on
which the same was  deposited in the United  States mail or  overnight  delivery
service, charges prepaid or provided for, addressed and sent as aforesaid.

     13.6. HEADINGS.  Section,  Article, paragraph and other headings contained 
in this Agreement are for reference purposes only and shall not affect in any 
way the meaning or interpretation of this Agreement.

     13.7. ENTIRE  AGREEMENT. This Agreement and the exhibits to this instrument
contain the entire agreement between the parties with respect to the transaction
contemplated by this Agreement. It may be executed in any number of counterparts
but the aggregate of the counterparts together constitute only one and the same
instrument.

     13.8. SCHEDULES. All schedules, appendices and exhibits  referred to in or
attached to this  Agreement are integral parts of this Agreement as if fully set
forth  herein  and all  statements  appearing  therein  shall  be  deemed  to be
disclosed only in connection with the specific  representation to which they are
explicitly referenced.

     13.9. COUNTERPARTS. This Agreement may be executed in two or more  
counterparts all of which shall be considered one and the same agreement and 
each of which shall be deemed an original.

     13.10. PRESS RELEASES. No announcement to the press concerning this 
Agreement and the  transactions  contemplated by the Transaction  Documents
shall be made by HRT or the Company unless the same shall be approved in advance
by HRT.  Nothing  contained in this  Agreement  shall  prevent any party to this
Agreement at any time from furnishing any information to any  governmental  body
or agency.

     13.11. RISK OF LOSS. The  Company shall  bear all  risks of  ownership  in 
respect  of the  Property, including all risk of condemnation,  destruction,  
loss or damage due to fire,  hazard, or other casualty,  through the Closing.

     13.12. EFFECT OF PARTIAL  INVALIDITY. In the event that any one or more of
the provisions  contained in this Agreement  shall  for any reason be held to be
invalid, illegal, or unenforceable in any respect, such invalidity,  illegality,
or unenforceability shall not affect any other provisions of this Agreement, but
this Agreement  shall be constructed as if it never  contained any such invalid,
illegal, or unenforceable provisions.

                                       44


     13.13. CONTROLLING  LAW. The  validity,  interpretation,  and  performance 
of this Agreement shall be controlled by and construed under the laws of the 
Commonwealth of Virginia.

                                   
                                       HEALTHCARE REALTY TRUST INCORPORATED


                                       By:
                                       Name:
                                       Title:


                                       HRT OF ROANOKE, INC.


                                       By:
                                       Name:
                                       Title:


                                       LEWIS-GALE BUILDING CORPORATION

                                                                 
                                       By:
                                       Name:
                                       Title:



     As a material inducement to the execution of this Agreement by HRT and 
Acquisition Sub, Lewis-Gale Clinic, LLC, by its duly authorized representatives,
hereby agrees to be bound by the provisions of Sections 5.6 and 9.2 of this 
Agreement.


                                       LEWIS-GALE CLINIC, LLC


                                       By:
                                       Name:
                                       Title:


                                       45



                      AGREEMENT AND PLAN OF MERGER

                                       
                          TABLE OF CONTENTS

 

                                                                        PAGE

DEFINITIONS                                                                1


ARTICLE I                                                                  
  1.1. The Merger..........................................................9
  1.2. The Closing.........................................................9
  1.3. The Surviving Corporation...........................................9
  1.4. Conversion of Shares...............................................10
  1.5. Tax Custody........................................................10
  1.6. Exchange of Stock Certificates.....................................10
  1.7. Dissenting Shares..................................................12
  1.8. Closing of Transfer Books..........................................12


ARTICLE II                                                                12
  2.1. General Statement..................................................12
  2.2. Organization and Standing of the Company...........................12
  2.3. Authorization of the Transaction...................................12
  2.4. Valid and Binding Agreement........................................13
  2.5. No Conflict........................................................13
  2.6. Required Consents..................................................13
  2.7. Capitalization.....................................................14
  2.8. No Violation or Default............................................14
  2.9. Financial Statements...............................................14
  2.10. Books and Records.................................................15
  2.11. Contracts; No Defaults............................................15
  2.12. The Property......................................................16
  2.13. Environmental.....................................................18
  2.14. Insurance.........................................................19
  2.15. Absence of Undisclosed Liabilities................................20
  2.16. Absence of Certain Changes........................................20
  2.17. Legal Proceedings, etc............................................22
  2.18. Intellectual Property.............................................22
  2.19. Taxes.............................................................22
  2.20. No Brokers or Finders.............................................22
  2.21. Employee Matters..................................................23
  2.22. Labor Matters.....................................................23
  2.23. Employee Benefit Plans; ERISA.....................................23
  2.24. Full Disclosure...................................................23


ARTICLE III                                                               23
  3.1. Documents to be Delivered..........................................23
  3.2. Review by HRT......................................................25
  3.3. Delivery of Additional Documents...................................25
  3.4. Review by HRT of Additional Documents..............................25
  3.5. Modification of Documents..........................................26
                                      
                                    (i)
        
ARTICLE IV                                                                26
  4.1. General Statement..................................................26
  4.2. Organization and Standing..........................................27
  4.3. Subsidiaries.......................................................27
  4.4. Authorization of the Transaction...................................27
  4.5. Valid and Binding Agreement........................................27
  4.6. Compliance with Law................................................27
  4.7. SEC Documents......................................................27
  4.8. Stock Exchange Listing.............................................28
  4.9. Status of HRT Merger Shares........................................28
  4.10. Brokers...........................................................28


ARTICLE V                                                                 28
  5.1. Conduct of Business in Its Ordinary Course.........................28
  5.2. Satisfy Conditions Precedent.......................................30
  5.3. Access to Information and Documents................................30
  5.4. Dissenters.........................................................30
  5.5. Earnings and Profits Analysis......................................30
  5.6. Taxes..............................................................31
  5.7. Negative Covenants.................................................31


ARTICLE VI                                                                32
  6.1. Conduct of Business in Its Ordinary Course.........................32
  6.2. Satisfy Conditions Precedent.......................................32


ARTICLE VII                                                               32
  7.1. Conditions Precedent to Closing....................................32
  7.2. Truth  of  Representations  and  Warranties  and  Compliance with
       Covenants..........................................................32
  7.3. Registration Statement.............................................33
  7.4. No Restrictions....................................................33
  7.5. Tax Opinion........................................................33
  7.6. Opinion from Counsel to HRT........................................33
  7.7. Stockholder Approval...............................................33
  7.8. Lender Consent.....................................................33
  7.9. Lease and Guaranty Agreement Effective.............................34


ARTICLE VIII                                                              34
  8.1. Conditions Precedent to Closing....................................34
  8.2. Truth of Representations and Warranties and Compliance with
  Covenants...............................................................34
  8.3. Stockholder Approval...............................................34
  8.4. Registration Statement Effective...................................34
  8.5. Lease and Guaranty Agreement Effective.............................34
  8.6. Acceptability of Papers and Proceedings............................35
  8.7. Opinion from Counsel to the Company................................35
  8.8. Title Insurance Policies and Confirmation..........................35
  8.9. Resignations of Officers and Directors.............................35
  8.10. Agreement of Affiliates...........................................35
  8.11. No Restrictions...................................................35
  8.12. No Material Changes to Property...................................35
  8.13. Earnings and Profits..............................................37
  8.14. Lender Consent....................................................37
                                  
                                   (ii)

ARTICLE IX                                                                37
  9.1. Nature and Survival of Representations and Warranties..............37
  9.2. Indemnification....................................................37


ARTICLE X                                                                 39
  10.1. Registration Statement............................................39
  10.2. Information Supplied..............................................40
  10.3. Stockholder Meeting...............................................40


ARTICLE XI                                                                40
  11.1. Reorganization....................................................40
  11.2. Election..........................................................40
  11.3. Actions Following Closing.........................................40
  11.4. Real Estate Investment Trust......................................41


ARTICLE XII                                                               41
  12.1. Optional Termination..............................................41
  12.2. Effect of Termination.............................................42
ARTICLE XIII                                                              42
  13.1. Expenses..........................................................42
  13.2. Amendment.........................................................42
  13.3. Modifications, Amendments and Waivers.............................42
  13.4. Assignment........................................................42
  13.5. Notices...........................................................43
  13.6. Headings..........................................................44
  13.7. Entire Agreement..................................................44
  13.8. Schedules.........................................................44
  13.9. Counterparts......................................................44
  13.10. Press Releases...................................................44
  13.11. Risk of Loss.....................................................44
  13.12. Effect of Partial Invalidity.....................................44
  13.13. Controlling Law..................................................45
                                    
                                  (iii)
EXHIBITS:

  A - Articles of Merger
  B - Value of the Company
  C - Description of the Property
  D - Custody Agreement
  E - Affiliate Letter
  F - Agreed Rents
                                   (iv)