PRIME GROUP REALTY TRUST
S-8, 1998-10-01
REAL ESTATE INVESTMENT TRUSTS
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   As filed with the Securities and Exchange Commission on October 1, 1998

                                                      Registration No. 333-_____

================================================================================
                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549
                             ----------------------

                                    FORM S-8

                             REGISTRATION STATEMENT

                                      UNDER

                           THE SECURITIES ACT OF 1933
                           --------------------------

                            PRIME GROUP REALTY TRUST
               (Exact name of issuer as specified in its charter)

              Maryland                                           36-4173047
    (State or other jurisdiction                              (I.R.S. Employer
  of incorporation or organization)                          Identification No.)

        77 West Wacker Drive
             Suite 3900
         Chicago, Illinois                                         60601
(Address of Principal Executive Offices)                         (Zip Code)


                            ------------------------
                            PRIME GROUP REALTY TRUST
                              SHARE INCENTIVE PLAN
                            (Full title of the plan)
                            ------------------------

                                                                Copy to:
            JAMES F. HOFFMAN, ESQ.                         BRIAN T. BLACK, ESQ.
Senior Vice President, General Counsel and Secretary        Winston & Strawn
        77 West Wacker Drive                              35 West Wacker Drive
       Chicago, Illinois 60601                           Chicago, Illinois 60601
           (312) 917-1300

  (Name, address, telephone number, including area code, of agent for service)

                         CALCULATION OF REGISTRATION FEE

- --------------------------------------------------------------------------------
   Title of       Amount     Proposed maximum   Proposed maximum      Amount of
securities to     to be       offering price       aggregate        registration
be registered   registered     per share(1)     offering price(1)       fee
- --------------------------------------------------------------------------------
Common Shares
of Beneficial
Interest, par    1,850,000        $16.66           $30,821,000        $9092.20
value $0.01
per share
- --------------------------------------------------------------------------------
(1)      Estimated  solely for the purpose of calculating the  registration  fee
         pursuant to Rule  457(h)(1) of the  Securities Act of 1933, as amended,
         on the basis of the  average  of the high and low  prices of the common
         shares  of  beneficial  interest,  par value  $0.01 per share  ("Common
         Shares"), of Prime Group Realty Trust on the New York Stock Exchange as
         of September 29, 1998.

<PAGE>
PART I -- INFORMATION REQUIRED IN THE SECTION 10(A) PROSPECTUS

     Prime  Group  Realty  Trust  shall  deliver  the  document  containing  the
information  in  Part I of  this  Registration  Statement  on  Form  S-8 to each
participant in the Prime Group Realty Trust Share Incentive Plan as specified by
Rule 428(b)(1) of the Securities Act of 1933, as amended (the "Securities Act").
Such document is not being filed with or included in this Registration Statement
(by  incorporation  by reference or otherwise) in accordance  with the rules and
regulations of the Securities and Exchange Commission (the  "Commission").  Such
document and the  documents  incorporated  by reference  into this  Registration
Statement  pursuant to Item 3 of Part II of this Registration  Statement,  taken
together,  constitute a prospectus that meets the  requirements of Section 10(a)
of the Securities Act.

PART II -- INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

ITEM 3.  INCORPORATION OF DOCUMENTS BY REFERENCE.

     The  following  documents  filed with the  Commission by Prime Group Realty
Trust,   a  Maryland   real  estate   investment   trust  (the  "Trust"  or  the
"Registrant"),  are  incorporated,  as of  their  respective  dates,  into  this
Registration Statement by reference:

     (a)  The Trust's  Prospectus  filed  pursuant to Rule  424(b)(4)  (File No.
          333-51599) dated May 29, 1998, as filed with the Commission on June 2,
          1998;

     (b)  The Trust's  Annual Report on Form 10-K (File No.  001-13589)  for the
          fiscal year ended  December 31, 1997, as filed with the  Commission on
          March 31, 1998 under the  Securities  Exchange Act of 1934, as amended
          (the "Exchange Act"), and as amended by the Trust's Amendment No. 1 on
          Form 10-K/A,  as filed with the  Commission on April 28, 1998;

     (c)  The Trust's  Quarterly  Reports on Form 10-Q (File No.  001-13589) for
          the  quarters  ended  March 31 and June 30,  1998,  as filed  with the
          Commission on May 15 and August 14, 1998, respectively;

     (d)  The Trust's  Current  Reports on Form 8-K (File No.  001-13589)  dated
          December 30,  1997,  January 14,  1998,  February 20, 1998,  March 19,
          1998, March 31, 1998 and May 29, 1998, as filed with the Commission on
          January 14,  1998,  January 30, 1998,  March 6, 1998,  April 14, 1998,
          April 15, 1998 and June 15, 1998, respectively;

     (e)  The Trust's Current Reports on Form 8-K/A (File No.  001-13589)  dated
          December 15, 1997,  December 15, 1997, January 14, 1998,  February 20,
          1998 and March 31, 1998, as filed with the  Commission on February 27,
          1998,  March 31, 1998,  March 31, 1998, May 5, 1998 and June 15, 1998,
          respectively;  and

     (f)  The  description of the Trust's Common Shares of Beneficial  Interest,
          par value  $0.01 per  share,  contained  in the  Trust's  Registration
          Statement  on Form 8-A,  as filed with the  Commission  on November 7,
          1997 under the Exchange Act.

     All documents  subsequently  filed by the Trust pursuant to Sections 13(a),
13(c), 14 and 15(d) of the Exchange Act prior to the filing of a  post-effective
amendment  which  indicates that all securities  offered have been sold or which
deregisters  all  securities  then  remaining  unsold,  shall  be  deemed  to be
incorporated by reference in this Registration Statement and to be a part hereof
from the date of filing such  documents.  Any statement  contained in a document
incorporated or deemed to be incorporated by reference herein shall be deemed to
be modified or  superseded  for purposes of this  Registration  Statement to the
extent  that a statement  contained  herein or in any other  subsequently  filed
document which is or is deemed to be incorporated  by reference  herein modifies
or supersedes such statement. Any such statement so modified or superseded shall
not be deemed, except as so modified or superseded, to constitute a part of this
Registration Statement.

                                      -2-
<PAGE>
ITEM 4.  DESCRIPTION OF SECURITIES.

                  Not applicable.

ITEM 5.  INTERESTS OF NAMED EXPERTS AND COUNSEL.

     James R. Thompson,  a trustee of the Trust,  is chairman of the law firm of
Winston & Strawn, which has provided,  and continues to provide,  legal services
to the Trust. As of the date of this  Registration  Statement,  Mr. Thompson has
options to acquire 5,000 Common Shares.

ITEM 6.  INDEMNIFICATION OF TRUSTEES AND OFFICERS.

     The Trust's  Articles of Amendment and Restatement of Declaration of Trust,
as amended, and Amended and Restated Bylaws authorize the Trust to indemnify its
present and former  trustees and  officers and to pay or reimburse  expenses for
such  individuals  in advance of the final  disposition  of a proceeding  to the
maximum  extent  permitted  from time to time under  Maryland  law. The Maryland
General  Corporation  Law,  as  applicable  to Maryland  real estate  investment
trusts,  currently provides that  indemnification of a person who is a party, or
threatened to be made a party,  to legal  proceedings by reason of the fact that
such a person is or was a trustee,  officer,  employee or agent of a corporation
or  other  firm at the  request  of a  corporation,  against  judgments,  fines,
penalties,  amounts paid in settlement and reasonable expenses,  is mandatory in
certain circumstances and permissive in others,  subject to authorization by the
board of  trustees,  a committee of the board of trustees  consisting  of two or
more trustees not parties to the  proceeding (if there does not exist a majority
vote quorum of the board of trustees  consisting  of trustees not parties to the
proceeding),  special legal  counsel  appointed by the board of trustees or such
committee of the board of trustees, or by the shareholders, so long as it is not
established  that the act or omission of such person was  material to the matter
giving rise to the proceedings and was committed in bad faith, was the result of
active and  deliberate  dishonesty,  involved such person  receiving an improper
personal  benefit in money,  property or  services,  or, in the case of criminal
proceedings,  such person had reason to believe  that his or her act or omission
was unlawful.

     The Trust's  officers  and trustees  are also  indemnified  pursuant to the
Amended and Restated  Agreement of Limited  Partnership  of Prime Group  Realty,
L.P., as amended and their respective employment agreements.

     The Trust  purchased  an  insurance  policy  which  purports  to insure the
officers and trustees of the Trust against certain liabilities  incurred by them
in the discharge of their  functions as such  officers and trustees,  except for
liabilities resulting from their own malfeasance.

                                      -3-
<PAGE>
ITEM 7.  EXEMPTION FROM REGISTRATION CLAIMED.

                  Not applicable.

ITEM 8.  EXHIBITS.

     4.1  Prime Group Realty Trust Share Incentive Plan

     4.2  Form of Share Option Agreement (Non-Qualified Option)

     4.3  Form of Share Option Agreement (Incentive Share Option)

     4.4  Form of Share Option Agreement (Trustee Option)

     5.1  Opinion of Miles &  Stockbridge  as to the legality of the  securities
          being registered

     15   Not Applicable

     23.1 Consent of Miles & Stockbridge (included as part of Exhibit 5.1)

     23.2 Consent of Ernst & Young LLP

     24.1 Powers of Attorney (included on the signature page hereof)

     25   Not Applicable

     26   Not Applicable

     27   Not Applicable

ITEM 9.  UNDERTAKINGS.

     (a)  The undersigned Registrant hereby undertakes:

          (1) To file,  during  any  period  in which  offers or sales are being
made, a post-effective amendment to this Registration Statement:

               (i) To include any prospectus required by Section 10(a)(3) of the
          Securities  Act;

               (ii) To reflect  in the  prospectus  any facts or events  arising
          after the effective date of this  Registration  Statement (or the most
          recent post-effective amendment thereof) which, individually or in the
          aggregate, represent a fundamental change in the information set forth
          in this Registration Statement; and

               (iii) To include any  material  information  with  respect to the
          plan of  distribution  not previously  disclosed in this  Registration
          Statement  or  any  material  change  to  such   information  in  this
          Registration Statement.

          Provided,  however,  that  paragraphs  (a)(1)(i) and (a)(1)(ii) do not
apply  if  the  information  required   to  be   included  in  a  post-effective
amendment by those  paragraphs  is contained  in periodic  reports  filed by the
Registrant  pursuant to Section 13 or Section 15(d) of the Exchange Act that are
incorporated by reference in this Registration Statement.

          (2) That,  for the  purpose of  determining  any  liability  under the
     Securities Act, each such post-effective  amendment shall be deemed to be a
     new registration  statement relating to the securities offered therein, and
     the  offering  of such  securities  at that time  shall be deemed to be the
     initial bona fide offering thereof.

          (3) To remove from registration by means of a post-effective amendment
     any  of  the  securities  being  registered  which  remain  unsold  at  the
     termination of the offering.

     (b) The  undersigned  Registrant  hereby  undertakes  that, for purposes of
determining  any  liability  under  the  Securities  Act,  each  filing  of  the
Registrant's  annual  report  pursuant to Section  13(a) or Section 15(d) of the
Exchange Act that is  incorporated by reference in this  Registration  Statement
shall be deemed to be a new  registration  statement  relating to the securities
offered  therein,  and the  offering  of such  securities  at that time shall be
deemed to be the initial bona fide offering thereof.

     (c) Insofar as indemnification for liabilities arising under the Securities
Act may be  permitted  to  trustees,  officers  and  controlling  persons of the
Registrant pursuant to the foregoing  provisions,  or otherwise,  the Registrant
has been advised that in the opinion of the Commission such  indemnification  is
against  public  policy as expressed in the  Securities  Act and is,  therefore,
unenforceable.  In the  event  that a claim  for  indemnification  against  such
liabilities  (other than the payment by the  Registrant of expenses  incurred or
paid by a  trustee,  officer  or  controlling  person of the  Registrant  in the
successful  defense of any  action,  suit or  proceeding)  is  asserted  by such
trustee,  officer or controlling  person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the matter
has been  settled by  controlling  precedent,  submit to a court of  appropriate
jurisdiction the question whether such  indemnification  by it is against public
policy as  expressed  in the  Securities  Act and will be  governed by the final
adjudication of such issue.

                                      -4-
<PAGE>
                                   SIGNATURES

     PURSUANT TO THE  REQUIREMENTS OF THE SECURITIES ACT OF 1933, THE REGISTRANT
CERTIFIES  THAT IT HAS  REASONABLE  GROUNDS TO BELIEVE  THAT IT MEETS ALL OF THE
REQUIREMENTS  FOR  FILING  ON FORM S-8 AND HAS  DULY  CAUSED  THIS  REGISTRATION
STATEMENT  TO BE  SIGNED  ON ITS  BEHALF  BY  THE  UNDERSIGNED,  THEREUNTO  DULY
AUTHORIZED,  IN THE  CITY OF  CHICAGO,  STATE  OF  ILLINOIS,  ON THE 1ST DAY OF
OCTOBER, 1998.

                                            PRIME GROUP REALTY TRUST

                                            /s/   RICHARD S. CURTO
                                           -------------------------------------
                                                     Richard S. Curto
                                           President and Chief Executive Officer

                              --------------------

     KNOW ALL  PERSONS  BY THESE  PRESENTS,  THAT EACH  PERSON  WHOSE  SIGNATURE
APPEARS BELOW CONSTITUTES AND APPOINTS RICHARD S. CURTO,  WILLIAM M. KARNES, ROY
P.  RENDINO  AND  JAMES  F.  HOFFMAN,  AND EACH OF  THEM,  HIS  TRUE AND  LAWFUL
ATTORNEYS-IN-FACT  AND AGENTS,  WITH FULL POWER OF SUBSTITUTION,  FOR HIM AND IN
HIS  NAME,  PLACE  AND  STEAD,  IN ANY AND ALL  CAPACITIES,  TO SIGN ANY AND ALL
AMENDMENTS (INCLUDING POST-EFFECTIVE AMENDMENTS) TO THIS REGISTRATION STATEMENT,
AND TO FILE THE SAME, WITH ALL EXHIBITS  THERETO AND ALL DOCUMENTS IN CONNECTION
THEREWITH,  WITH THE  SECURITIES  AND EXCHANGE  COMMISSION,  GRANTING  UNTO SAID
ATTORNEYS-IN-FACT AND AGENTS FULL POWER AND AUTHORITY TO DO AND PERFORM EACH AND
EVERY  ACT AND  THING  REQUISITE  AND  NECESSARY  TO BE DONE  IN AND  ABOUT  THE
PREMISES,  AS  FULLY  TO ALL  INTENTS  AND  PURPOSES  AS HE MIGHT OR COULD DO IN
PERSON, HEREBY RATIFYING AND CONFIRMING ALL THAT EACH SAID ATTORNEYS-IN-FACT AND
AGENTS,  OR HIS OR THEIR SUBSTITUTE OR SUBSTITUTES,  MAY LAWFULLY DO OR CAUSE TO
BE DONE BY VIRTUE HEREOF.

     PURSUANT  TO  THE   REQUIREMENTS  OF  THE  SECURITIES  ACT  OF  1933,  THIS
REGISTRATION  STATEMENT  HAS BEEN SIGNED BELOW ON  OCTOBER 1,  1998 BY THE
FOLLOWING PERSONS IN THE CAPACITIES INDICATED.

           SIGNATURE                                              TITLE
           ---------

    /s/   MICHAEL W. RESCHKE                     Chairman of the Board, Trustee
- ----------------------------------
          Michael W. Reschke

    /s/   RICHARD S. CURTO                       President and Chief Executive
- ----------------------------------               Officer (principal executive
          Richard S. Curto                       officer), Trustee

    /s/   WILLIAM M. KARNES                      Executive   Vice  President
- ----------------------------------               and Chief Financial Officer
          William M. Karnes                      (principal financial officer)

   /s/   ROY P. RENDINO                          Senior Vice President--Finance
- ----------------------------------               and Chief Accounting Officer
         Roy P. Rendino                          (principal accounting officer)

   /s/   STEPHEN J. NARDI                        Trustee
- ----------------------------------
         Stephen J. Nardi

    /s/   JACQUE M. DUCHARME                     Independent Trustee
- ----------------------------------
          Jacque M. Ducharme

                                                 Independent Trustee
- ----------------------------------
          Christopher J. Nassetta

                                                 Independent Trustee
- ----------------------------------
          Thomas J. Saylak

                                                 Independent Trustee
- ----------------------------------
          James R. Thompson

                            PRIME GROUP REALTY TRUST

                              SHARE INCENTIVE PLAN


<PAGE>
                            PRIME GROUP REALTY TRUST
                              SHARE INCENTIVE PLAN
                                TABLE OF CONTENTS

                                                                            Page
                                                                            ----

Article 1.    Establishment, Objectives and Duration..........................1

Article 2.    Definitions.....................................................2

Article 3.    Administration..................................................7

Article 4.    Shares Subject to the Plan and Maximum Awards...................7

Article 5.    Eligibility and Participation...................................9

Article 6.    Stock Options...................................................9

Article 7.    Stock Appreciation Rights......................................11

Article 8.    Restricted Stock and Restricted Units..........................13

Article 9.    Performance Units .............................................14

Article 10.   Performance Measures...........................................16

Article 11.   Beneficiary Designation........................................17

Article 12.   Deferrals......................................................17

Article 13.   Rights of Employees............................................18

Article 14.   Change in Control..............................................18

Article 15.   Amendment, Modification and Termination........................19

Article 16.   Withholding....................................................20

Article 17.   Indemnification................................................20

Article 18.   Successors.....................................................21

Article 19.   Legal Construction.............................................21

Article 20.   Shareholder Approval...........................................22

                                       i
<PAGE>
                            PRIME GROUP REALTY TRUST
                              SHARE INCENTIVE PLAN


ARTICLE 1. ESTABLISHMENT, OBJECTIVES AND DURATION

     1.1  ESTABLISHMENT  OF THE PLAN.  Prime Group Realty Trust, a Maryland real
estate  investment  trust  (hereinafter  referred to as the  "Company"),  hereby
establishes a long-term  incentive  compensation  plan to be known as the "Prime
Group  Realty  Trust  Share  Incentive  Plan"  (hereinafter  referred  to as the
"Plan"),  as set  forth  in  this  document.  The  Plan  permits  the  grant  of
Nonqualified Stock Options,  Incentive Stock Options, Stock Appreciation Rights,
Restricted Stock, Restricted Units and Performance Units.

     Subject  to the  approval  of the  Company's  shareholders,  the Plan shall
become effective as of November 17, 1997 (the "Effective Date") and shall remain
in effect as provided in Section 1.3 hereof.

     1.2  OBJECTIVES OF THE PLAN. The objectives of the Plan are to optimize the
profitability and growth of the Company through  long-term  incentives which are
consistent  with the  Company's  objectives  and  which  link the  interests  of
Participants  to those of the Company's  shareholders;  to provide  Participants
with an incentive  for  excellence  in  individual  performance;  and to promote
teamwork among Participants;  and to give the Company a significant advantage in
attracting and retaining officers, key employees and trustees.

     The Plan is further  intended to provide  flexibility to the Company in its
ability to motivate,  attract and retain the services of  Participants  who make
significant  contributions to the Company's success and to allow Participants to
share in the success of the Company.

     1.3 DURATION OF THE PLAN. The Plan shall commence on the Effective Date, as
described  in Section 1.1  hereof,  and shall  remain in effect,  subject to the
right of the  Board of  Trustees  to  amend  or  terminate  the Plan at any time
pursuant to Article 15 hereof,  until all Shares subject to the Plan pursuant to
Article 4 shall have been  purchased  or acquired  according  to the  provisions
hereof. In no event, however, may an Award be granted under the Plan on or after
October 31, 2007.

<PAGE>
ARTICLE 2. DEFINITIONS

     Whenever used in the Plan, the following  terms shall have the meanings set
forth below,  and when the meaning is intended,  the initial  letter of the word
shall be capitalized:

     2.1 "AWARD" means, individually or collectively, a grant under this Plan of
Nonqualified Stock Options,  Incentive Stock Options, Stock Appreciation Rights,
Restricted Stock, Restricted Units or Performance Units.

     2.2 "AWARD  AGREEMENT" means an agreement entered into by the Company and a
Participant  setting  forth the terms and  provisions  applicable to an Award or
Awards granted under this Plan to such Participant.

     2.3  "BOARD"  or "BOARD OF  TRUSTEES"  means the Board of  Trustees  of the
Company.

     2.4 "CAUSE" shall have the meaning set forth in any unexpired employment or
severance agreement between the Participant and the Company or another Employer,
in the absence of any such  agreement,  shall mean (i) the willful and continued
failure of the  Participant to  substantially  perform his or her duties with or
for the Company or another  Employer,  (ii) the engaging by the  Participant  in
conduct  which is  significantly  injurious to the Company or another  Employer,
monetarily or otherwise,  (iii) the Participant's  conviction of a felony,  (iv)
the Participant's  abuse of illegal drugs or other controlled  substances or (v)
the  Participant's  habitual  intoxication.  Unless  otherwise  defined  in  the
Participant's employment or severance agreement, an act or omission is "willful"
for this  purpose if such act or  omission  was  knowingly  done,  or  knowingly
omitted to be done, by the Participant not in good faith and without  reasonable
belief  that such act or  omission  was in the best  interest  of the Company or
another Employer.

<PAGE>
     2.5 "CHANGE IN CONTROL" shall be deemed to have occurred if

          (a) any "person" (as such term is used in Sections  13(d) and 14(d) of
     the  Exchange  Act),  other  than a  trustee  or  other  fiduciary  holding
     securities under an employee benefit plan of the Company,  a corporation or
     trust owned  directly or indirectly by the  shareholders  of the Company in
     substantially  the same  proportions  as  their  ownership  of the  Shares,
     Michael W.  Reschke or The Prime  Group,  Inc.  or any of their  respective
     affiliates,  becomes the "beneficial owner" (as defined in Rule 13d-3 under
     the Exchange  Act),  directly or  indirectly,  of securities of the Company
     representing  50% or more of the  total  voting  power  represented  by the
     Company's then outstanding  securities which vote generally in the election
     of Trustees (referred to herein as "Voting Securities");

          (b) during any period of two consecutive years, individuals who at the
     beginning of such period  constitute  the Board and any new Trustees  whose
     election  by  the  Board  or  nomination  for  election  by  the  Company's
     shareholders  was approved by a vote of at least two-thirds of the Trustees
     then still in office who  either  were  Trustees  at the  beginning  of the
     period or whose  election or  nomination  for  election was  previously  so
     approved, cease for any reason to constitute a majority of the Board;

          (c) the  shareholders of the Company approve a merger or consolidation
     of the Company with any other trust or corporation,  other than a merger or
     consolidation  which would result in the Voting  Securities  of the Company
     outstanding  immediately  prior thereto  continuing to represent (either by
     remaining  outstanding or by being converted into Voting  Securities of the
     surviving  entity) more than 50% of the total voting power  represented  by
     the Voting  Securities of the Company or such surviving entity  outstanding
     immediately after such merger or consolidation; or

          (d)  the  shareholders  of the  Company  approve  a plan  of  complete
     liquidation  of the Company or an agreement for the sale or  disposition by
     the  Company (in one  transaction  or a series of  transactions)  of all or
     substantially all of the Company's assets.

     2.6 "CODE" means the Internal Revenue Code of 1986, as amended from time to
time.

     2.7 "COMMITTEE"  means, as specified in Article 3 herein,  the Compensation
Committee of the Board or such other  committee as may be appointed by the Board
to administer the Plan.

     2.8  "COMPANY"  means  Prime Group  Realty  Trust,  a Maryland  real estate
investment trust, and any successor thereto as provided in Article 18 herein.

     2.9  "DISABILITY"  shall mean (a)  long-term  disability as defined under a
long-term   disability   plan  maintained  by  an  Employer  and  covering  that
individual,  or  (b) if  the  individual  is not  covered  by  such a  long-term
disability  plan,  disability  as defined  for  purposes  of  eligibility  for a
disability award under the Social Security Act.

     2.10  "EFFECTIVE  DATE"  shall have the  meaning  ascribed  to such term in
Section 1.1 hereof.


<PAGE>
     2.11  "ELIGIBLE  EMPLOYEE"  means any officer or other key  employee of the
Company or of any other  Employer.  Trustees who are not employed by the Company
or another Employer shall not be considered Eligible Employees under this Plan.

     2.12 "EMPLOYER"  means,  individually,  the Company,  each Subsidiary,  the
Operating Partnership, the Services Company and any other corporation,  trust or
partnership  in which the Company owns  directly or  indirectly  at least 50% in
value of the outstanding capital or profits interest.

     2.13 "EXCHANGE  ACT" means the Securities  Exchange Act of 1934, as amended
from time to time, or any successor act thereto.

     2.14  "EXERCISE  PRICE"  means the price at which a Share may be  purchased
pursuant to the exercise of an Option.

     2.15 "FAIR  MARKET  VALUE"  means the per share value of the Shares as of a
given date, determined as follows:

          (a) If the Shares are listed or  admitted  for trading on the New York
     Stock  Exchange (or if not, on another  national  securities  exchange upon
     which the  Shares  are  listed),  the Fair  Market  Value of a Share is the
     closing  quotation for such shares based on composite  transactions for the
     New York  Stock  Exchange  (or if not  listed on it,  such  other  national
     securities  exchange)  on the last trading day for the Shares prior to such
     given  date.

          (b) If the Shares are not traded on any national securities  exchange,
     but are quoted on the National  Association  of  Securities  Dealers,  Inc.
     Automated  Quotation  System  (NASDAQ  System)  or any  similar  system  of
     automated  dissemination  of  quotations  of prices in common use, the Fair
     Market  Value of a Share is the last  sales  price (if the  Shares are then
     listed as a national  market  issue  under the  NASDAQ  System) or the mean
     between  the  closing  representative  bid and asked  prices  (in all other
     cases) for the Shares on the last 5 trading  days for the Shares  preceding
     such given date as reported by the NASDAQ System (or such similar quotation
     system).

<PAGE>
          (c) If  neither  clause (a) nor  clause  (b) of this  Section  2.15 is
     applicable,  the Fair Market  Value of a Share is the fair market value per
     share as of such  valuation  date, as determined by the Board in good faith
     and in accordance with uniform principles  consistently applied;  provided,
     however,  that  the  Fair  Market  Value  of a  Share  on the  date  of the
     completion of an initial public offering of the Shares shall be the initial
     public offering price.

     2.16 "FREESTANDING  SAR" means an SAR that is granted  independently of any
Option, as described in Article 7 herein.

     2.17  "INCENTIVE  STOCK OPTION" or "ISO" means an option to purchase Shares
granted under Article 6 herein which is designated as an Incentive  Stock Option
and that is intended to meet the requirements of Code Section 422.

     2.18 "NONEMPLOYEE TRUSTEE" means an individual who is a member of the Board
of  Trustees  of the  Company  but who is not an  employee of the Company or any
other Employer.

     2.19  "NONQUALIFIED  STOCK  OPTION" or "NQSO"  means an option to  purchase
Shares  granted  under  Article  6  herein  that is not  intended  to  meet  the
requirements of Code Section 422.

     2.20  "OPERATING  PARTNERSHIP"  means Prime Group Realty,  L.P., a Delaware
limited partnership.

     2.21  "OPTION"  means an  Incentive  Stock Option or a  Nonqualified  Stock
Option, as described in Article 6 herein.

     2.22 "PARTICIPANT"  means an Eligible Employee who has been selected by the
Committee  to  participate  in the  Plan  pursuant  to  Section  5.2 and who has
outstanding  an Award granted under the Plan. The term  "Participant"  shall not
include Nonemployee Trustees.

     2.23  "PERFORMANCE-BASED  EXCEPTION" means the performance-based  exception
from  the  tax  deductibility   limitations  of  Code  Section  162(m)  and  any
regulations promulgated thereunder.

     2.24  "PERFORMANCE  UNIT"  means  a Share  equivalent  Award  granted  to a
Participant, as described in Article 9 herein.

<PAGE>
     2.25  "RESTRICTION  PERIOD"  means the period  during which the transfer of
Shares of Restricted Stock is limited in some way (based on the passage of time,
the  achievement  of  performance  objectives,  or upon the  occurrence of other
events as determined by the Committee, at its discretion), and/or the Restricted
Stock/Units are not vested.

     2.26  "RESTRICTED  STOCK" means a contingent  grant of Shares  awarded to a
Participant pursuant to Article 8 herein.

     2.27  "RESTRICTED  UNIT"  means  a  Share  equivalent  Award  granted  to a
Participant, as described in Article 8 herein.

     2.28  "RETIREMENT"  shall mean  termination  of  employment on or after (a)
attaining  the age  established  as the normal  retirement  age in any unexpired
employment agreement between the Participant and the Company or another Employer
or, in the absence of such an  agreement,  the normal  retirement  age under the
tax-qualified  defined benefit  retirement  plan or, if none, the  tax-qualified
defined  contribution  retirement  plan,  sponsored  by the  Company  or another
Employer in which the Participant  participates,  or (b) attaining age sixty-two
with ten years of continuous  service with one or more  Employers  provided that
the retirement is approved by the Chief Executive  Officer of the Company unless
the Participant is an officer subject to Section 16 of the Exchange Act in which
case the retirement must be approved by the Committee.

     2.29 "SERVICES COMPANY" means Prime Group Realty Services, Inc., a Maryland
corporation.

     2.30 "SHARES" means the Company's common shares.

     2.31 "STOCK APPRECIATION  RIGHT" or "SAR" means an Award,  granted alone or
in connection with a related Option, designated as an SAR, pursuant to the terms
of Article 7 herein.

     2.32 "SUBSIDIARY" means a subsidiary  corporation of the Company within the
meaning of Code Section 424(f).

     2.33 "TANDEM SAR" means an SAR that is granted in connection with a related
Option pursuant to Article 7 herein,  the exercise of which requires  forfeiture
of the right to purchase a Share  under the related  Option (and when a Share is
purchased under the Option, the Tandem SAR shall similarly be canceled).

     2.34  "TRUSTEE"  means  any  individual  who is a  member  of the  Board of
Trustees.

<PAGE>
ARTICLE 3. ADMINISTRATION

     3.1 THE  COMMITTEE.  The Plan  shall be  administered  by the  Compensation
Committee of the Board, or by any other Committee  appointed by the Board, which
Committee  (unless  otherwise   determined  by  the  Board)  shall  satisfy  the
"nonemployee director" requirements of Rule 16b-3 under the Exchange Act and the
regulations  thereunder  and the "outside  director"  provisions of Code Section
162(m), or any successor regulations or provisions. The members of the Committee
shall be appointed  from time to time by, and shall serve at the  discretion of,
the Board.  The Committee  shall act by a majority of its members at the time in
office and  eligible to vote on any  particular  matter,  and such action may be
taken either by a vote at a meeting or in writing without a meeting.

     3.2 AUTHORITY OF THE COMMITTEE. Except as limited by law and subject to the
provisions herein, the Committee shall have full power and discretion to: select
Eligible  Employees  who  shall  participate  in the  Plan;  select  Nonemployee
Trustees to receive  Awards under  Article 6;  determine  the sizes and types of
Awards; determine the terms and conditions of Awards in a manner consistent with
the Plan;  construe  and  interpret  the Plan and any  agreement  or  instrument
entered into under the Plan; establish, amend or waive rules and regulations for
the Plan's administration;  and, subject to the provisions of Article 15 herein,
amend the terms and conditions of any outstanding Award to the extent such terms
and  conditions  are within the  discretion  of the Committee as provided in the
Plan. Further,  the Committee shall make all other  determinations  which may be
necessary or advisable for the  administration  of the Plan. As permitted by law
and  consistent  with Section 3.1, the  Committee  may delegate its authority as
identified herein.

     3.3  DECISIONS  BINDING.  All  determinations  and  decisions  made  by the
Committee pursuant to the provisions of the Plan shall be final,  conclusive and
binding on all  persons,  including  the  Company,  its Board of  Trustees,  its
shareholders,  all  Employers,  employees,  Participants  and their  estates and
beneficiaries.

ARTICLE 4. SHARES SUBJECT TO THE PLAN AND MAXIMUM AWARDS

     4.1  NUMBER OF SHARES  AVAILABLE  FOR  GRANTS.  Subject  to  adjustment  as
provided  in Section  4.3  herein,  the  number of Shares  that may be issued or
transferred to Participants under the Plan shall be 1,850,000 Shares.

<PAGE>
     The maximum number of Shares and Share equivalent units that may be granted
during any calendar  year to any one  Participant  under  Options,  Freestanding
SARs, Restricted Stock,  Restricted Units or Performance Units, shall be 200,000
(on an  aggregate  basis for all such types of Awards),  which limit shall apply
regardless of whether such compensation is paid in Shares or in cash.

     4.2  LAPSED  AWARDS.  If any Award  granted  under  this Plan is  canceled,
terminates,  expires or lapses for any reason,  any Shares subject to such Award
again shall be  available  for the grant of an Award  under the Plan,  but shall
continue to count for the purpose of the annual individual award limit set forth
in Subsection 4.1 above.

     4.3 ADJUSTMENTS IN AUTHORIZED SHARES.

     (a)  In the event the Shares,  as presently  constituted,  shall be changed
          into  or  exchanged  for a  different  number  or kind  of  shares  of
          securities of the Company or of another corporation (whether by reason
          of merger, consolidation,  recapitalization,  reclassification, split,
          reverse split,  combination of shares,  or otherwise) or if the number
          of such  Shares  shall be  increased  through  the  payment of a share
          dividend,  then there shall be substituted  for or added to each Share
          theretofore  appropriated  or  thereafter  subject or which may become
          subject to an Award under this Plan,  the number and kind of shares of
          securities into which each outstanding  Share shall be so changed,  or
          for which each such Share  shall be  exchanged,  or to which each such
          Share shall be entitled,  as the case may be. Outstanding Awards shall
          also be  appropriately  amended as to price and other  terms as may be
          necessary to reflect the foregoing events. In the event there shall be
          any other change in the number or kind of the outstanding  Shares,  or
          of any stock or other  securities  into which such  Shares  shall have
          been changed, or for which it shall have been exchanged,  then, if the
          Committee  shall, in its sole  discretion,  determine that such change
          equitably  requires an  adjustment in any Award  therefore  granted or
          which may be granted under the Plan, such adjustments shall be made in
          accordance with such  determination.

     (b)  Fractional  Shares resulting from any adjustment in Awards pursuant to
          this  section  may be settled in cash or  otherwise  as the  Committee
          shall  determine.  Notice  of any  adjustment  shall  be  given by the
          Company  to each  Participant  who  holds an Award  which  has been so
          adjusted  and such  adjustment  (whether  or not such notice is given)
          shall be effective and binding for all purposes of the Plan.

<PAGE>
     4.4 EMPLOYER PAYMENT.  In the case of Shares delivered pursuant to an Award
granted to an employee of an  Employer  other than the Company or a  Subsidiary,
such Employer shall make a payment to the Company with respect to such Shares in
an amount  equal to (i) the Fair  Market  Value of the  Shares on the date as of
which they are so delivered,  less (ii) in the case of an option,  the aggregate
exercise  price for such Shares.  For this  purpose,  the  obligation to deliver
Shares shall first be  satisfied  from any Shares  transferred  in payment of an
exercise price.

ARTICLE 5. ELIGIBILITY AND PARTICIPATION

     5.1 ELIGIBILITY.  Individuals  eligible to participate in this Plan consist
of all Eligible  Employees,  including Eligible Employees who are members of the
Board, and Nonemployee Trustees but only to the extent provided herein.

     5.2  ACTUAL  PARTICIPATION.  Subject  to the  provisions  of the Plan,  the
Committee may, from time to time, select from all Eligible  Employees,  those to
whom Awards shall be granted and shall  determine  the nature and amount of each
Award.

ARTICLE 6. STOCK OPTIONS

     6.1 GRANT OF  OPTIONS.  Subject  to the terms and  provisions  of the Plan,
Options  may be granted to  Eligible  Employees  in such  number,  and upon such
terms,  and at any  time and from  time to time as  shall be  determined  by the
Committee.  Options  granted to  Eligible  Employees  who are  employees  of the
Company or a Subsidiary  may be either ISOs or NQSOs.  Options  granted to other
Eligible  Employees  may only be NQSOs.  In  addition,  NQSOs may be  granted to
Nonemployee  Trustees in such number,  and upon such terms,  and at any time and
from time to time as shall be determined by the Committee.

     6.2 AWARD  AGREEMENT.  Each  Option  grant shall be  evidenced  by an Award
Agreement that shall specify the Exercise Price, the duration of the Option, the
number of Shares to which the  Option  pertains,  the  manner,  time and rate of
exercise or vesting of the Option,  and such other  provisions  as the Committee
shall  determine.  The Award  Agreement also shall specify whether the Option is
intended to be an ISO within the meaning of Code Section 422 or an NQSO which is
not intended to qualify under the provisions of Code Section 422.

<PAGE>
     6.3 EXERCISE PRICE.  The Exercise Price for each Share subject to an Option
granted  under this Plan shall be at least equal to one  hundred  percent of the
Fair  Market  Value  of a Share on the date the  Option  is  granted;  provided,
however, that, in the case of an ISO, the price per share shall not be less than
110% of the  Fair  Market  Value  of such  Share  if on the  date of  grant  the
Participant  owns (within the meaning of Code  Section  424(d)) more than 10% of
the total combined voting power of all classes of shares of beneficial  interest
of the Company or any Subsidiary.

     6.4 DURATION OF OPTIONS.  Each Option granted to an Eligible  Employee or a
Nonemployee  Trustee shall expire at such time as the Committee  shall determine
at the time of grant;  provided,  however,  that no Option shall be  exercisable
later than the tenth  anniversary of the date of its grant;  provided,  further,
that in the case of an ISO granted to a Participant  owning  (within the meaning
of Code  Section  424(d)),  on the date of  grant,  more  than 110% of the total
combined  voting  power of all classes of shares of  beneficial  interest of the
Company or any  Subsidiary,  the Option shall not be exercisable  later than the
fifth anniversary of the date of its grant.

     6.5 DIVIDEND  EQUIVALENTS.  The Committee may grant dividend equivalents in
connection with Options  granted under this Plan. Such dividend  equivalents may
be payable in cash or in Shares,  upon such terms as the Committee,  in its sole
discretion, deems appropriate.

     6.6  EXERCISE OF OPTIONS.  Options  granted  under this  Article 6 shall be
exercisable at such times and be subject to such  restrictions and conditions as
the  Committee  shall in each instance  approve,  which need not be the same for
each Award or for each Participant. To the extent that the aggregate Fair Market
Value of the Shares with respect to which  Incentive  Stock Options  (within the
meaning of Section 422 of the Code,  but without regard to Section 422(d) of the
Code) are exercisable for the first time by the Participant  during any calendar
year (under the Plan and all other  incentive stock option plans of the Company)
exceeds  $100,000,  such Options shall be treated as Nonqualified  Options.  The
rule set forth in the preceding sentence shall be applied by taking Options into
account in the order in which they were  granted,  and the Fair Market  Value of
the Shares  shall be  determined  as of the time the Option with respect to such
Shares is granted.

     6.7 PAYMENT. Options granted under this Article 6 shall be exercised by the
delivery  of a written  notice of  exercise to the  Company,  setting  forth the
number of Shares with respect to which the Option is to be exercised accompanied
by full payment for the Shares and any  withholding tax relating to the exercise
of the Option.

<PAGE>
     The Exercise Price, and any related withholding taxes, upon exercise of any
Option  shall be  payable:  (a) in cash,  or its  equivalent,  in United  States
dollars,  or (b) if permitted in the  governing  Award  Agreement,  by tendering
previously  acquired Shares having an aggregate Fair Market Value at the time of
exercise equal to the total Exercise Price, or (c) if permitted in the governing
Award  Agreement,  by a combination of (a) and (b). The Committee also may allow
cashless  exercise as permitted  under  Federal  Reserve  Board's  Regulation T,
subject to applicable  securities law restrictions,  or by any other means which
the Committee determines to be consistent with the Plan's purpose and applicable
law.

     6.8 TERMINATION OF EMPLOYMENT.  Each Option Award Agreement shall set forth
the extent to which the Participant  shall have the right to exercise the Option
following  termination of the Participant's  employment with the Company and all
other Employers. Such provisions shall be determined by the Committee,  shall be
included  in  the  Award  Agreement   entered  into  with  each  Participant  or
Nonemployee  Trustee,  need not be uniform among all Options issued  pursuant to
this  Article  6,  and  may  reflect  distinctions  based  on  the  reasons  for
termination of employment.

     6.9  NONTRANSFERABILITY OF OPTIONS. No Option granted under the Plan may be
sold,  transferred,  pledged,  assigned or otherwise  alienated or hypothecated,
other  than by will or by the laws of descent  and  distribution.  Further,  all
Options granted to a Participant under the Plan shall be exercisable  during the
Participant's lifetime only by such Participant or the Participant's guardian or
legal  representative.  The  Committee may require a  Participant's  guardian or
legal  representative  to supply it with such  evidence as the  Committee  deems
necessary to establish the authority of the guardian or legal  representative to
act on behalf of the Participant.

ARTICLE 7. STOCK APPRECIATION RIGHTS

     7.1 GRANT OF SARS.  Subject to the terms and  conditions of the Plan,  SARs
may be  granted  to  Participants  at any time and from time to time as shall be
determined by the Committee.  The Committee may grant  Freestanding SARs, Tandem
SARs or any combination of these forms of SAR.

     Subject to Article 4 hereof,  the Committee  shall  determine the number of
SARs granted to each  Participant  and,  consistent  with the  provisions of the
Plan, determine the terms and conditions pertaining to such SARs.

     The grant price of a Freestanding  SAR shall equal the Fair Market Value of
a Share on the date of grant of the SAR.  The grant  price of Tandem  SARs shall
equal the Exercise Price of the related Option.

<PAGE>
     7.2 EXERCISE OF TANDEM SARS.  Tandem SARs may be exercised  for all or part
of the Shares  subject to the related  Option upon the surrender of the right to
exercise  the  equivalent  portion of the  related  Option.  A Tandem SAR may be
exercised  only with respect to the Shares for which its related  Option is then
exercisable.

     7.3 EXERCISE OF FREESTANDING SARS.  Freestanding SARs may be exercised upon
whatever terms and conditions the Committee imposes upon them.

     7.4  AWARD  AGREEMENT.  Each  SAR  grant  shall  be  evidenced  by an Award
Agreement that shall specify the grant price, the term of the SAR and such other
provisions as the Committee shall determine.

     7.5  DURATION OF SARS.  The term of an SAR granted  under the Plan shall be
determined by the Committee;  provided, however, that such term shall not exceed
ten years.

     7.6 PAYMENT OF SAR AMOUNT.  Upon exercise of an SAR, a Participant shall be
entitled to receive payment from his or her Employer in an amount  determined by
multiplying:

          (a)  the excess (or some portion of such excess as  determined  at the
               time of the grant by the  Committee)  if any,  of the Fair Market
               Value  of a Share  on the  date of  exercise  of the SAR over the
               grant price specified in the Award  Agreement;  by

          (b)  the number of Shares with respect to which the SAR is  exercised.

     At the discretion of the Committee, the payment upon SAR exercise may be in
cash, in Shares of equivalent Fair Market Value or in some combination thereof.

     7.7 TERMINATION OF EMPLOYMENT. Each SAR Award Agreement shall set forth the
extent  to which  the  Participant  shall  have the  right to  exercise  the SAR
following  termination of the Participant's  employment with the Company and all
other Employers. Such provisions shall be determined by the Committee,  shall be
included in the Award  Agreement  entered  into with  Participants,  need not be
uniform among all SARs issued pursuant to the Plan, and may reflect distinctions
based on the reasons for termination of employment.

<PAGE>
     7.8   NONTRANSFERABILITY  OF  SARS.  Except  as  otherwise  provided  in  a
Participant's  Award  Agreement,  no SAR  granted  under  the  Plan may be sold,
transferred,  pledged,  assigned or otherwise  alienated or hypothecated,  other
than by will or by the laws of  descent  and  distribution.  Further,  except as
otherwise  provided in a Participant's  Award  Agreement,  all SARs granted to a
Participant  under  the  Plan  shall be  exercisable  during  the  Participant's
lifetime  only  by such  Participant  or the  Participant's  guardian  or  legal
representative.  The  Committee  may require a  Participant's  guardian or legal
representative  to supply it with such evidence as the Committee deems necessary
to establish  the  authority of the guardian or legal  representative  to act on
behalf of the Participant.

ARTICLE 8. RESTRICTED STOCK AND RESTRICTED UNITS

     8.1 GRANT OF RESTRICTED STOCK/UNITS. Subject to the terms and provisions of
the Plan, the Committee may, at any time and from time to time, grant Restricted
Stock and/or  Restricted  Units to Participants in such amounts as the Committee
shall  determine.  Each grant of Restricted  Stock shall be  represented  by the
number of Shares to which the Award  relates.  Each  grant of  Restricted  Units
shall be represented by the number of Share  equivalent units to which the Award
relates.

     8.2 AWARD AGREEMENT. Each Restricted Stock/Unit grant shall be evidenced by
an Award  Agreement that shall specify the  Restriction  Periods,  the number of
Shares or Share  equivalent  units  granted,  and such other  provisions  as the
Committee shall determine.

     8.3  NONTRANSFERABILITY.   Except  as  provided  in  this  Article  8,  the
Restricted  Stock/Units  granted herein may not be sold,  transferred,  pledged,
assigned or otherwise  alienated or hypothecated until the end of the applicable
Restriction  Period  established  by the Committee and as specified in the Award
Agreement, or upon earlier satisfaction of any other conditions, as specified by
the Committee and as set forth in the Award  Agreement.  All rights with respect
to  Restricted  Stock/Units  granted  to a  Participant  under the Plan shall be
available  during the  Participant's  lifetime only to such  Participant  or the
Participant's  guardian or legal  representative.  The  Committee  may require a
Participant's  guardian or legal  representative to supply it with such evidence
as the Committee  deems  necessary to establish the authority of the guardian or
legal representative to act on behalf of the Participant.

<PAGE>
     8.4 OTHER  RESTRICTIONS.  The  Committee  may impose such other  conditions
and/or  restrictions on any restricted  Stock/Units granted pursuant to the Plan
as it deems advisable including, without limitation, restrictions based upon the
achievement of specific  performance  objectives  (Company-wide,  business unit,
and/or individual),  time-based restrictions on vesting following the attainment
of the performance  objectives,  and/or restrictions under applicable federal or
state securities laws.

     The Company shall retain the certificates representing Shares of restricted
Stock in the  Company's  possession  until  such time as all  conditions  and/or
restrictions applicable to such Shares have been satisfied.

     8.5 PAYMENT OF AWARDS.  Except as otherwise provided in this Article 8, (i)
Shares covered by each  Restricted  Stock grant made under the Plan shall become
freely  transferable  by the  Participant  after the last day of the  applicable
Restriction  Period and (ii) Share  equivalent  units covered by each Restricted
Unit under  Section  8.1 shall be paid out in cash or Shares to the  Participant
following the last day of the applicable  Restriction  Period or such later date
as provided in the Award Agreement.

     8.6 VOTING RIGHTS.  During the  Restriction  Period,  Participants  holding
Shares of  Restricted  Stock  granted  hereunder may exercise full voting rights
with respect to those Shares.

     8.7  DIVIDENDS  AND OTHER  DISTRIBUTIONS.  During the  Restriction  Period,
Participants  holding  Shares  of  Restricted  Stock/Units  hereunder  shall  be
credited with regular cash dividends or dividend  equivalents  paid with respect
to the underlying  Shares or Share equivalent units while they are so held. Such
dividends may be paid  currently,  accrued as contingent  cash  obligations,  or
converted into additional Shares or units of Restricted  Stock/Units,  upon such
terms as the Committee establishes.

     The  Committee may apply any  restrictions  to the crediting and payment of
dividends and other  distributions  that the Committee deems advisable.  Without
limiting the  generality of the preceding  sentence,  if the grant or vesting of
Restricted   Stock/Units  is  designed  to  qualify  for  the  Performance-Based
Exception,  the Committee may apply any restrictions it deems appropriate to the
payment of dividends declared with respect to such Restricted Stock/Units,  such
that the dividends and/or the Restricted  Stock/Units  maintain  eligibility for
the Performance-Based Exception.

<PAGE>
     8.8  TERMINATION OF EMPLOYMENT.  Each Award  Agreement  shall set forth the
extent  to which  the  Participant  shall  have the  right  to  retain  unvested
Restricted  Stock/Units  following  termination of the Participant's  employment
with the Company and all other Employers. Such provisions shall be determined by
the Committee,  shall be included in the Award Agreement  entered into with each
Participant,  need not be  uniform  among all Awards of  Restricted  Stock/Units
issued pursuant to the Plan, and may reflect  distinctions  based on the reasons
for termination of employment.

ARTICLE 9. PERFORMANCE UNITS

     9.1  GRANT  OF  PERFORMANCE  UNITS.  Subject  to the  terms  of  the  Plan,
Performance  Units may be granted to  Participants in such amounts and upon such
terms,  and at any time and from  time to time,  as shall be  determined  by the
Committee.

     9.2 VALUE OF PERFORMANCE  UNITS.  Each grant of Performance  Units shall be
represented by the number of Share  equivalent units to which the Award relates.
The  Committee  shall  set  performance  objectives  in  its  discretion  which,
depending  on the extent to which  they are met,  will  determine  the number of
Performance Units that will be paid out to the Participant. For purposes of this
Article 9, the time period during which the  performance  objectives must be met
shall be called a "Performance  Period" and shall be set by the Committee in its
discretion.

     9.3 EARNING OF PERFORMANCE UNITS.  Subject to the terms of this Plan, after
the applicable  Performance  Period has ended,  the holder of Performance  Units
shall be entitled to receive payout on the number of Performance Units earned by
the Participant over the Performance  Period,  to be determined as a function of
the extent to which the corresponding performance objectives have been achieved.

     9.4 AWARD AGREEMENT.  Each grant of Performance Units shall be evidenced by
an Award  Agreement which shall specify the material terms and conditions of the
Award, and such other provisions as the Committee shall determine.

     9.5 FORM AND TIMING OF PAYMENT OF PERFORMANCE UNITS.  Except as provided in
Article  12,  payment  of  earned   Performance   Units  shall  be  made  within
seventy-five  calendar days  following the close of the  applicable  Performance
Period in a manner  determined by the Committee.  Payment of earned  Performance
Units may be in the form of cash or in Shares (or in a combination thereof).

<PAGE>
     9.6  TERMINATION  OF EMPLOYMENT  DUE TO DEATH,  DISABILITY,  OR RETIREMENT.
Unless determined  otherwise by the Committee and set forth in the Participant's
Award  Agreement,  in the event the employment of a Participant is terminated by
reason of death,  Disability or  Retirement  during a  Performance  Period,  the
Participant  shall receive a payout of the Performance  Units which is prorated,
as  specified  by the  Committee  in the  Award  Agreement.  Payment  of  earned
Performance  Units shall be made at a time  specified by the  Committee  and set
forth in the Participant's Award Agreement.

     9.7  TERMINATION  OF  EMPLOYMENT  FOR OTHER  REASONS.  In the event  that a
Participant's  employment  terminates during a Performance Period for any reason
other than those reasons set forth in Section 9.6 herein,  all Performance Units
shall be  forfeited  by the  Participant,  unless  determined  otherwise  by the
Committee in the Participant's Award Agreement.

     9.8  NONTRANSFERABILITY.  Except as otherwise  provided in a  Participant's
Award  Agreement,  Performance  Units  may not be  sold,  transferred,  pledged,
assigned or otherwise  alienated or  hypothecated,  other than by will or by the
laws of descent and  distribution.  Further,  except as otherwise  provided in a
Participant's  Award Agreement,  a Participant's  rights under the Plan shall be
exercisable  during  the  Participant's  lifetime  only by such  Participant  or
Participant's  guardian or legal  representative.  The  Committee  may require a
Participant's  guardian or legal  representative to supply it with such evidence
as the Committee  deems  necessary to establish the authority of the guardian or
legal representative to act on behalf of the Participant.

ARTICLE 10. PERFORMANCE MEASURES

     Unless and until the Committee  proposes for  shareholder  approval and the
Company's  shareholders approve a change in the general performance measures set
forth in this Article 10, the  attainment  of which may  determine the degree of
payout  and/or  vesting with respect to Awards which are designed to qualify for
the  Performance-Based  Exception,  the  performance  measure(s)  to be used for
purposes of such awards shall be chosen from among the following alternatives:

     (a)  return to shareholders (absolute or peer-group comparative);

     (b)  stock price increase (absolute or peer-group comparative);

     (c)  cumulative   net  income   (absolute  or   competitive   growth  rates
          comparative);

     (d)  return on equity;

<PAGE>
     (e)  return on capital;

     (f)  cash flow,  including operating cash flow, free cash flow,  discounted
          cash  flow  return on  investment,  and cash flow in excess of cost of
          capital;

     (g)  economic value added (income in excess of capital costs); or

     (h)  market share.

     The Committee shall have the discretion to adjust the determinations of the
degree of attainment of the  preestablished  performance  objectives;  provided,
however,  that Awards  which are  designed to qualify for the  Performance-Based
Exception may not be adjusted except to the extent  permitted under Code Section
162(m).

     In the event that Code Section 162(m) or applicable  tax and/or  securities
laws change to permit  Committee  discretion to alter the governing  performance
measures without obtaining  shareholder  approval of such changes, the Committee
shall have sole  discretion to make such changes without  obtaining  shareholder
approval.  In addition,  in the event that the Committee  determines  that it is
advisable  to grant  Awards  which shall not  qualify for the  Performance-Based
Exception,   the  Committee  may  make  such  grants   without   satisfying  the
requirements of Code Section 162(m).

ARTICLE 11. BENEFICIARY DESIGNATION

     Each  Participant  under  the  Plan  may,  from  time  to  time,  name  any
beneficiary or beneficiaries  (who may be named contingently or successively) to
whom  any  benefit  under  the  Plan is to be paid in case of the  death  of the
Participant  before he or she  receives  any or all of such  benefit.  Each such
designation shall revoke all prior  designations by the same Participant,  shall
be in a form prescribed by the Committee during the Participant's  lifetime.  If
the  Participant's  designated  beneficiary  predeceases  the  Participant or no
beneficiary has been designated,  benefits remaining unpaid at the Participant's
death shall be paid to the  Participant's  spouse or if none, the  Participant's
estate.

<PAGE>
ARTICLE 12. DEFERRALS

     The  Committee   may  permit  or  require  a  Participant   to  defer  such
Participant's  receipt of the  payment of cash or the  delivery  of Shares  that
would  otherwise  be due to such  Participant  by virtue of the  exercise  of an
Option or SAR, the lapse or waiver of  restrictions  with respect to  Restricted
Stock/Units,  or the satisfaction of any requirements or objectives with respect
to Performance  Units.  If any such deferral  election is permitted or required,
the Committee shall, in its sole discretion,  establish rules and procedures for
such  deferrals.  Notwithstanding  the  foregoing,  the  Committee  in its  sole
discretion  may defer  payment  of cash or the  delivery  of Shares  that  would
otherwise  be due to a  Participant  under the Plan if such  payment or delivery
would result in compensation not deductible by the Company or any other Employer
by virtue of Code Section 162(m). Such a deferral may continue until the payment
or delivery would result in compensation deductible by the Company or such other
Employer under Code Section 162(m).

ARTICLE 13. RIGHTS OF EMPLOYEES

     13.1  EMPLOYMENT.  Nothing in the Plan shall interfere with or limit in any
way  the  right  of  the  Company  or  any  other   Employer  to  terminate  any
Participant's  employment at any time, or confer upon any  Participant any right
to continue in the employ of the Company or any other Employer.

     13.2  PARTICIPATION.  No  Eligible  Employee  shall  have  the  right to be
selected to receive an Award under this Plan, or, having been so selected, to be
selected to receive a future Award.

ARTICLE 14. CHANGE IN CONTROL

     14.1  TREATMENT OF OUTSTANDING  AWARDS.  Upon the occurrence of a Change in
Control,  unless otherwise specifically  prohibited under applicable laws, or by
the rules and  regulations  of any governing  governmental  agencies or national
securities exchanges:

     (a)  Any and all  outstanding  Options  and SARs  granted  hereunder  shall
          become   immediately   exercisable,   and  shall  remain   exercisable
          throughout their entire term.

<PAGE>
     (b)  Any Periods of  Restriction  and  restrictions  imposed on  Restricted
          Stock/Units shall lapse; provided, however, that the degree of vesting
          associated with Restricted Stock/Units which has been conditioned upon
          the  achievement  of  performance  conditions  pursuant to Section 8.4
          herein shall be determined in the manner set forth in Section  14.1(c)
          herein.

     (c)  Except as otherwise  provided in the Award  Agreement,  the vesting of
          all Performance Units shall be accelerated as of the effective date of
          the  Change  in  Control,  and  there  shall  be  paid  out in cash to
          Participants  within thirty days  following the effective  date of the
          Change in Control a pro rata amount based upon an assumed  achievement
          of all relevant performance  objectives at target levels, and upon the
          length of time within the  Performance  Period which has elapsed prior
          to the  effective  date of the Change in Control;  provided,  however,
          that in the event the Committee  determines that actual performance to
          the effective date of the Change in Control exceeds target levels, the
          prorated payouts shall be made at levels commensurate with such actual
          performance  (determined by extrapolating  such actual  performance to
          the end of the  Performance  Period),  based  upon the  length of time
          within the Performance Period which has elapsed prior to the effective
          date of the Change in Control.

     14.2  TERMINATION,  AMENDMENT,  AND  MODIFICATIONS  OF  CHANGE  IN  CONTROL
PROVISIONS.  Notwithstanding  any  other  provision  of this  Plan or any  Award
Agreement  provision,  the  provisions of this Article 14 may not be terminated,
amended,  or modified on or after the  effective  date of a Change in Control to
affect adversely any Award theretofore  granted under the Plan without the prior
written  consent  of the  Participant  with  respect  to his or her  outstanding
Awards.

ARTICLE 15. AMENDMENT, MODIFICATION AND TERMINATION

     15.1  AMENDMENT,  MODIFICATION  AND  TERMINATION.  Subject to Section  14.2
herein, the Board may at any time and from time to time, alter, amend, modify or
terminate the Plan in whole or in part.

     Subject to the terms and  conditions of the Plan, the Committee may modify,
extend or renew  outstanding  Awards under the Plan,  or accept the surrender of
outstanding  Awards  (to the  extent not  theretofore  exercised)  and grant new
Awards in substitution therefor (to the extent not theretofore  exercised).  The
Committee shall not, however,  modify any outstanding  Incentive Stock Option so
as to  specify  a  lower  Exercise  Price.  Notwithstanding  the  foregoing,  no
modification of an Award shall, without the consent of the Participant, alter or
impair any rights or obligations under any Award  theretofore  granted under the
Plan.

<PAGE>
     15.2  ADJUSTMENT  OF AWARDS  UPON THE  OCCURRENCE  OF  CERTAIN  UNUSUAL  OR
NONRECURRING  EVENTS.  The  Committee  may make  adjustments  in the  terms  and
conditions of, and the criteria included in, Awards in recognition of unusual or
nonrecurring  events  (including,  without  limitation,  the events described in
Section 4.3 hereof)  affecting  the Company or the  financial  statements of the
Company or of changes in applicable laws, regulations, or accounting principles,
whenever the Committee determines that such adjustments are appropriate in order
to prevent  dilution  or  enlargement  of the  benefits  or  potential  benefits
intended to be made available  under the Plan,  subject to the  requirements  of
Code Section  162(m) for the  Performance-Based  Exception in the case of Awards
designed to qualify for the Performance-Based Exception.

     15.3 AWARDS PREVIOUSLY GRANTED.  No termination,  amendment or modification
of the Plan shall  adversely  affect in any  material  way any Award  previously
granted under the Plan,  without the written consent of the Participant  holding
such Award.

     15.4 COMPLIANCE WITH CODE SECTION 162(M).  Awards, when Code Section 162(m)
is  applicable,  shall  comply with the  requirements  of Code  Section  162(m);
provided,  however,  that  in the  event  the  Committee  determines  that  such
compliance  is not desired  with  respect to any Award or Awards  available  for
grant  under the Plan,  then  compliance  with Code  Section  162(m) will not be
required. In addition, in the event that changes are made to Code Section 162(m)
to permit  greater  flexibility  with  respect to any Award or Awards  available
under  the Plan,  the  Committee  may,  subject  to this  Article  15,  make any
adjustments it deems appropriate.

ARTICLE 16. WITHHOLDING

     16.1 TAX  WITHHOLDING.  Each Employer shall have the power and the right to
deduct or withhold, or require a Participant to remit to the Employer, an amount
(either  in cash or Shares)  sufficient  to satisfy  federal,  state,  and local
taxes,  domestic or foreign,  required by law or  regulation to be withheld with
respect to any taxable event arising as a result of this Plan.

<PAGE>
     16.2 SHARE  WITHHOLDING.  With  respect to  withholding  required  upon the
exercise of Options or SARs, upon the lapse of restrictions on Restricted Stock,
or upon any other taxable event arising as a result of Awards granted hereunder,
an Employer may satisfy the minimum  withholding  requirement  for  supplemental
wages,  in whole or in part, by withholding  from the Award Shares having a Fair
Market Value (determined on the date the Participant  recognizes  taxable income
on the Award)  equal to the  withholding  tax  required to be  collected  on the
transaction.  The  Participant  may  elect,  subject  to  the  approval  of  the
Committee,  to deliver the necessary funds to satisfy the withholding obligation
to an Employer, in which case there will be no reduction in the Shares otherwise
distributable to the Participant.

ARTICLE 17. INDEMNIFICATION

     Each person who is or has been a member of the Committee,  or of the Board,
shall be indemnified and held harmless by the Company against and from any loss,
cost,  liability,  or expense that may be imposed upon or reasonably incurred by
such person in connection  with or resulting  from any claim,  action,  suit, or
proceeding  to which such  person may be a party or in which such  person may be
involved  by reason of any  action  taken or  failure  to act under the Plan and
against  and  from  any and all  amounts  paid by such  person  in a  settlement
approved by the Company,  or paid by such person in satisfaction of any judgment
in any such action,  suit,  or  proceeding  against such person,  provided  such
person shall give the Company an opportunity,  at its own expense, to handle and
defend  the same  before  such  person  undertakes  to handle and defend it. The
foregoing right of indemnification shall not be exclusive of any other rights of
indemnification  to which  such  persons  may be  entitled  under the  Company's
Articles of Incorporation or By-Laws,  as a matter of law, or otherwise,  or any
power that the Company may have to indemnify them or hold them harmless.

ARTICLE 18. SUCCESSORS

     All  obligations of an Employer under the Plan or any Award  Agreement with
respect to Awards  granted  hereunder  shall be binding on any  successor to the
Employer,  whether the existence of such  successor is the result of a direct or
indirect  purchase of all or substantially  all of the business and/or assets of
the Employer, or a merger, consolidation, or otherwise.

ARTICLE 19. LEGAL CONSTRUCTION

     19.1 GENDER AND NUMBER.  Except where  otherwise  indicated by the context,
any masculine term used herein also shall include the feminine; the plural shall
include the singular and the singular shall include the plural.

     19.2  SEVERABILITY.  In the event any  provision  of the Plan shall be held
illegal or invalid for any reason, the illegality or invalidity shall not affect
the remaining parts of the Plan, and the Plan shall be construed and enforced as
if the illegal or invalid provision had not been included.

<PAGE>
     19.3  REQUIREMENTS OF LAW. The granting of Awards and the issuance of Share
and/or  cash  payouts  under the Plan shall be subject to all  applicable  laws,
rules,  and regulations,  and to such approvals by any governmental  agencies or
national securities exchanges as may be required.  The Committee may impose such
restrictions  on any Shares  delivered  pursuant to any Award granted under this
Plan  as  the  Committee  deems  necessary  or  advisable,   including,  without
limitation,  restrictions  under applicable  federal  securities laws, under the
requirements  of any stock  exchange  or market  upon which such Shares are then
listed and/or traded, and under any blue sky or state securities laws applicable
to such Shares.

     19.4 SECURITIES LAW  COMPLIANCE.  With respect to any individual who is, on
the relevant date, an officer,  director or ten percent  beneficial owner of any
class of the Company's equity securities that is registered  pursuant to Section
12 of the Exchange  Act, all as defined  under  Section 16 of the Exchange  Act,
transactions  under  this  Plan are  intended  to  comply  with  all  applicable
conditions of Rule 16b-3 under the Exchange  Act, or any successor  rule. To the
extent any provision of the Plan or action by the Committee  fails to so comply,
it shall be deemed  null and void,  to the  extent  permitted  by law and deemed
advisable by the Committee.

     19.5 AWARDS TO FOREIGN  NATIONALS AND EMPLOYEES  OUTSIDE THE UNITED STATES.
To the extent the  Committee  deems it  necessary,  appropriate  or desirable to
comply with  foreign law of practice  and to further the  purposes of this Plan,
the Committee may,  without amending the Plan, (i) establish rules applicable to
Awards granted to Participants who are foreign  nationals,  are employed outside
the United States, or both,  including rules that differ from those set forth in
this Plan, and (ii) grant Awards to such  Participants  in accordance with those
rules.

     19.6  UNFUNDED  STATUS OF THE PLAN.  The Plan is intended to  constitute an
"unfunded"  plan for  incentive and deferred  compensation.  With respect to any
payments or deliveries of Shares not yet made to a Participant by the Company or
any other  Employer,  nothing  contained  herein  shall give any rights that are
greater  than those of a general  creditor.  The  Committee  may  authorize  the
creation of trusts or other  arrangements to meet the obligations  created under
the Plan to deliver Shares or payments hereunder consistent with the foregoing.

     19.7  GOVERNING  LAW. To the extent not preempted by federal law, the Plan,
and all agreements hereunder, shall be construed in accordance with and governed
by the laws of the State of Maryland.

<PAGE>
ARTICLE 20. SHAREHOLDER APPROVAL

     This Plan will be submitted for the approval of the Company's  shareholders
within twelve months before or after the date of the Board's initial adoption of
the Plan.  Awards may be granted prior to such shareholder  approval;  provided,
however,  that such Awards shall not be exercisable or payable prior to the time
when the Plan is approved by the shareholders;  provided,  further, that if such
approval  has not been  obtained  at the end of said  twelve-month  period,  all
Awards previously granted under the Plan shall thereupon be cancelled and become
null and void.

                                     FORM OF
                            PRIME GROUP REALTY TRUST
                             SHARE OPTION AGREEMENT
                              (NONQUALIFIED OPTION)

     This Share Option  Agreement  dated as of  ___________,  1997 (the "Date of
Grant"),  by  and  between  _____________________,  an  individual  residing  in
_______________,  ______________ (the "Optionee"), and Prime Group Realty Trust,
a Maryland real estate investment trust (the "Company").

                              W I T N E S S E T H:

     WHEREAS,  as used herein the term "Shares" shall mean the Company's  Common
Shares of Beneficial Interest, $.01 par value per share;

     WHEREAS, the Optionee is a key employee;

     WHEREAS, the Company desires to grant to the Optionee an option to purchase
from the Company  __________  Shares for a purchase price per share of $_______,
subject to the terms and conditions hereinafter set forth.

     NOW,  THEREFORE,  for good and valuable  consideration,  the parties hereto
agree as follows:

     1. OPTION.  In  accordance  with the  provisions  of the Prime Group Realty
Trust  Share  Incentive  Plan (the  "Plan"),  the Company  hereby  grants to the
Optionee the right to purchase (the "Option"),  subject to the terms, conditions
and  restrictions  stated herein,  from the Company  _______ Shares (the "Option
Shares") at a price per share of $_______.

     2.  VESTING.  Except  as may  otherwise  be  provided  in the  Plan or this
Agreement,  this  Option  shall  vest  only  on the  dates  and  to  the  extent
hereinafter set forth; provided, however, that the Optionee continuously remains
an employee of an "Employer"  (as that term is defined in the Plan) through each
such date:

     (i)  no part of the Option shall vest prior to the first anniversary of the
          Date of Grant;

     (ii) on the first  anniversary of the Date of Grant,  the right to purchase
          one-third of the Option Shares shall vest;

     (iii) on the second anniversary of the Date of Grant, the right to purchase
          an additional one-third of the Option Shares shall vest; and

     (iv) on the third  anniversary of the Date of Grant,  the right to purchase
          the remaining one-third of the Option Shares shall vest.

<PAGE>
Notwithstanding clauses (i) through (iv) above, in the event the Optionee ceases
to be an employee of an Employer on or after the first  anniversary  of the Date
of Grant due to the Optionee's death or "Disability" (as that term is defined in
the Plan), or in the event of a "Change in Control" of the Company (as that term
is  defined  in the Plan) on or  before  the date the  Optionee  ceases to be an
employee of an Employer,  all rights to purchase  Option Shares not  theretofore
vested  shall  immediately  vest on the date of such event.  Except as otherwise
provided in the sentence  next above,  all rights to purchase  Option Shares not
theretofore  vested shall be forfeited as of the date the Optionee  ceases to be
an employee of an Employer.

     3.  EXERCISE  PERIOD.  The  Optionee  (or in the  event of the death of the
Optionee,  the  Optionee's  successor in interest) may exercise the Option as to
those Option Shares which have theretofore vested as herein provided at any time
prior to the first to occur of the following events:

     (i)  the expiration of ten years from the Date of Grant;

     (ii) the expiration of one year from the date the Optionee  ceases to be an
          employee of an Employer  unless the Optionee dies within said one-year
          period; or

     (iii) the expiration of one year from the date of the Optionee's death.

     4. MANNER OF EXERCISE.  An exercisable  Option, or any exercisable  portion
thereof,  may be exercised solely by delivery to the Secretary of the Company or
the  Secretary's  office of all of the  following  prior to the time as of which
such Option ceases to be exercisable:

     (a)  notice in writing signed by the Optionee or other person then entitled
          to exercise such Option or portion  thereof,  stating that such Option
          or portion is exercised,  such notice  complying  with all  applicable
          rules set forth in the Plan or otherwise  established by the committee
          appointed to administer the Plan (the "Committee");

     (b)  full  payment for the Option  Shares with respect to which such Option
          is thereby exercised as follows:

          (i)  in cash or by check;  or

          (ii) with the consent of the Committee,  in Shares previously acquired
               by the Optionee duly endorsed for transfer to the Company, with a
               "Fair Market  Value" (as that term is defined in the Plan) on the
               date of Option  exercise  equal to the aggregate  Option price of
               the Option Shares with respect to which this Option or portion is
               thereby exercised; or

<PAGE>
          (iii) with the consent of the  Committee,  any other  means  which the
               Committee determines to be consistent with the Plan's purpose and
               applicable law; or

          (iv) with  the  consent  of  the  Committee,  any  combination  of the
               consideration provided in the foregoing subsections (i), (ii) and
               (iii);

     (c)  the payment of all amounts  which are required to be  withheld,  after
          taking into account any applicable Share  withholding,  under federal,
          state or local law in connection with the exercise of the Option;

     (d)  such  representations and documents as the Committee,  in its absolute
          discretion, deems necessary or advisable to effect compliance with all
          applicable  provisions  of the  Securities  Act of 1933 and any  other
          federal or state securities laws or regulations; and

     (e)  in the event that the Option or a portion  thereof  shall be exercised
          by any person or persons other than the Optionee, appropriate proof of
          the right of such person or persons to exercise  the Option or portion
          thereof.

     5.  Transferability.  This Option is personal to the  Optionee and the same
may not in any manner or in any respect be assigned or  transferred,  other than
by will or the laws of descent and distribution.

     6. Miscellaneous.

     (a) The rights herein granted are in all respects subject to the provisions
set  forth in the Plan to the same  extent  and with the same  effect  as if set
forth fully herein.

     (b) The  granting of this Option  shall not be  construed  as giving to the
Optionee  any right to be  retained  in the  employ of the  Company or any other
Employer.

     (c) For the purpose hereof,  a transfer of the Optionee's  employment among
the Employers shall not constitute a termination of employment with an Employer.

     (d) This Option shall not be treated as an incentive stock option under the
Internal Revenue Code of 1986, as amended.

     (e) The  validity,  interpretation  and effect of this  Agreement  shall be
governed by the laws of the State of Maryland, excluding the "conflicts of laws"
rules thereof.

<PAGE>
     IN WITNESS WHEREOF, the parties hereto have duly executed this Agreement on
the day and year first above written.

                                       PRIME GROUP REALTY TRUST

                                       By:
                                          --------------------------------------
                                          Its:

                                       OPTIONEE

                                       -----------------------------------------
                                       (name)


<PAGE>
                                     FORM OF
                            PRIME GROUP REALTY TRUST
                             SHARE OPTION AGREEMENT
                            (INCENTIVE SHARE OPTION)

     This Share Option  Agreement dated as of  ____________,  1997 (the "Date of
Grant"),  by  and  between  _____________________,  an  individual  residing  in
_______________,  ______________ (the "Optionee"), and Prime Group Realty Trust,
a Maryland real estate investment trust (the "Company").

                              W I T N E S S E T H:

     WHEREAS,  as used herein the term "Shares" shall mean the Company's  Common
Shares of Beneficial Interest, $.01 par value per share;

     WHEREAS,  the  Optionee is a key  employee  of the Company or a  "corporate
subsidiary"  thereof,  within  the  meaning of  Section  424(f) of the  Internal
Revenue Code of 1986, as amended (the "Code");

     WHEREAS, the Company desires to grant to the Optionee an option to purchase
from the Company  __________  Shares for a purchase price per share of $_______,
subject to the terms and conditions hereinafter set forth.

     NOW,  THEREFORE,  for good and valuable  consideration,  the parties hereto
agree as follows:

     1. OPTION.  In  accordance  with the  provisions  of the Prime Group Realty
Trust  Share  Incentive  Plan (the  "Plan"),  the Company  hereby  grants to the
Optionee the right to purchase (the "Option"),  subject to the terms, conditions
and  restrictions  stated herein,  from the Company  _______ Shares (the "Option
Shares") at a price per share of $_______.

     2.  VESTING.  Except  as may  otherwise  be  provided  in the  Plan or this
Agreement,  this  Option  shall  vest  only  on the  dates  and  to  the  extent
hereinafter set forth; provided, however, that the Optionee continuously remains
an employee of Company through each such date:

     (i)  no part of the Option shall vest prior to the first anniversary of the
          Date of Grant;

     (ii) on the first  anniversary of the Date of Grant,  the right to purchase
          one-third of the Option Shares shall vest;

     (iii) on the second anniversary of the Date of Grant, the right to purchase
          an additional one-third of the Option Shares shall vest; and

<PAGE>
     (iv) on the third  anniversary of the Date of Grant,  the right to purchase
          the remaining one-third of the Option Shares shall vest.

Notwithstanding clauses (i) through (iv) above, in the event the Optionee ceases
to be an employee of the Company on or after the first  anniversary  of the Date
of Grant due to the Optionee's death or "Disability" (as that term is defined in
the Plan) or in the event of a "Change in  Control" of the Company (as that term
is defined in the Plan) on or before  the date the  Optionee  ceases to be an of
the Company,  all rights to purchase Option Shares not theretofore  vested shall
immediately vest on the date of such event.  Except as otherwise provided in the
sentence next above, all rights to purchase Option Shares not theretofore vested
shall be forfeited  as of the date the Optionee  ceases to be an employee of the
Company.

     3.  Exercise  Period.  The  Optionee  (or in the  event of the death of the
Optionee,  the  Optionee's  successor in interest) may exercise the Option as to
those Option Shares which have theretofore vested as herein provided at any time
prior to the first to occur of the following events:

     (i)  the expiration of ten years from the Date of Grant,

     (ii) except in the case of any Optionee who is disabled (within the meaning
          of Section  22(e)(3) of the Code,  the expiration of three months from
          the date as of which  the  Optionee  ceases to be an  employee  of the
          Company for any reason  other than such  Optionee's  death  unless the
          Optionee dies within said three-month period;

     (iii) in the case of an Optionee  who is  disabled  (within  the meaning of
          Section  22(e)(3) of the Code),  the  expiration  of one year from the
          date as of which the Optionee  ceases to be an employee of the Company
          unless the Optionee dies within said one-year period; or

     (iv) the expiration of one year from the date of the Optionee's death.

     4. MANNER OF EXERCISE.  An exercisable  Option, or any exercisable  portion
thereof,  may be exercised solely by delivery to the Secretary of the Company or
the  Secretary's  office of all of the  following  prior to the time as of which
such Option ceases to be exercisable:

     (a)  notice in writing signed by the Optionee or other person then entitled
          to exercise such Option or portion  thereof,  stating that such Option
          or portion is exercised,  such notice  complying  with all  applicable
          rules set forth in the Plan or otherwise  established by the committee
          appointed to administer the Plan (the "Committee");

     (b)  full  payment for the Option  Shares with respect to which such Option
          is thereby exercised as follows:

<PAGE>
          (i)  in cash or by check; or

          (ii) with the consent of the Committee,  in Shares previously acquired
               by the Optionee duly endorsed for transfer to the Company, with a
               "Fair Market  Value" (as that term is defined in the Plan) on the
               date of Option  exercise  equal to the aggregate  Option price of
               the Option Shares with respect to which this Option or portion is
               thereby exercised; or

          (iii) with the  consent of the Committee,  any other  means  which the
               Committee determines to be consistent with the Plan's purpose and
               applicable law; or

          (iv) with  the  consent  of  the  Committee,  any  combination  of the
               consideration provided in the foregoing subsections (i), (ii) and
               (iii);

     (c)  such  representations and documents as the Committee,  in its absolute
          discretion, deems necessary or advisable to effect compliance with all
          applicable  provisions  of the  Securities  Act of 1933 and any  other
          federal or state securities laws or regulations;  and

     (d)  in the event that the Option or a portion  thereof  shall be exercised
          by any person or persons other than the Optionee, appropriate proof of
          the right of such person or persons to exercise  the Option or portion
          thereof.

     5.  TRANSFERABILITY.  This Option is personal to the  Optionee and the same
may not in any manner or in any respect be assigned or  transferred,  other than
by will or the laws of descent and distribution.

     6. MISCELLANEOUS.

     (a) The rights herein granted are in all respects subject to the provisions
set  forth in the Plan to the same  extent  and with the same  effect  as if set
forth fully herein.

     (b) The  granting of this Option  shall not be  construed  as giving to the
Optionee any right to be retained in the employ of the Company. For the purposes
of this  Agreement,  employment with a "Subsidiary" of the Company (as that term
is defined in the Plan) shall be considered employment with the Company.

     (c) This Option  shall be treated as an  incentive  stock  option under the
Code.

     (d) The  validity,  interpretation  and effect of this  Agreement  shall be
governed by the laws of the State of Maryland, excluding the "conflicts of laws"
rules thereof.

<PAGE>
     IN WITNESS WHEREOF, the parties hereto have duly executed this Agreement on
the day and year first above written.

                                       PRIME GROUP REALTY TRUST

                                       By:
                                          --------------------------------------
                                          Its:

                                       OPTIONEE

                                       -----------------------------------------
                                       (name)

                                     FORM OF
                            PRIME GROUP REALTY TRUST
                             SHARE OPTION AGREEMENT
                                (TRUSTEE OPTION)

     This Share Option  Agreement  dated as of  ___________,  1997 (the "Date of
Grant"),  by  and  between  _____________________,  an  individual  residing  in
_______________,  ______________ (the "Optionee"), and Prime Group Realty Trust,
a Maryland real estate investment trust (the "Company").

                              W I T N E S S E T H:

     WHEREAS,  as used herein the term "Shares" shall mean the Company's  Common
Shares of Beneficial Interest, $.01 par value per share;

     WHEREAS, the Optionee is a member of the Company's Board of Trustees;

     WHEREAS, the Company desires to grant to the Optionee an option to purchase
from the Company  __________  Shares for a purchase price per share of $_______,
subject to the terms and conditions hereinafter set forth.

     NOW,  THEREFORE,  for good and valuable  consideration,  the parties hereto
agree as follows:

     1. OPTION.  In  accordance  with the  provisions  of the Prime Group Realty
Trust  Share  Incentive  Plan (the  "Plan"),  the Company  hereby  grants to the
Optionee the right to purchase (the "Option"),  subject to the terms, conditions
and  restrictions  stated herein,  from the Company  _______ Shares (the "Option
Shares") at a price per share of $_______.

     2.  VESTING.  Except  as may  otherwise  be  provided  in the  Plan or this
Agreement,  this  Option  shall  vest  only  on the  dates  and  to  the  extent
hereinafter set forth; provided, however, that the Optionee continuously remains
a trustee of Company through each such date:

     (i)  no part of the Option shall vest prior to the first anniversary of the
          Date of Grant;

     (ii) on the first  anniversary of the Date of Grant,  the right to purchase
          one-third of the Option Shares shall vest;

     (iii) on the second anniversary of the Date of Grant, the right to purchase
          an additional one-third of the Option Shares shall vest; and

     (iv) on the third  anniversary of the Date of Grant,  the right to purchase
          the remaining one-third of the Option Shares shall vest.

<PAGE>
Notwithstanding clauses (i) through (iv) above, in the event the Optionee ceases
to be a trustee of the Company on or after the first  anniversary of the Date of
Grant due to the Optionee's  death or  "Disability"  (as that term is defined in
the Plan), or in the event of a "Change in Control" of the Company (as that term
is  defined  in the  Plan) on or  before  the date the  Optionee  ceases to be a
trustee of the Company,  all rights to purchase  Option  Shares not  theretofore
vested  shall  immediately  vest on the date of such event.  Except as otherwise
provided in the sentence  next above,  all rights to purchase  Option Shares not
theretofore vested shall be forfeited as of the date the Optionee ceases to be a
trustee of the Company.

     3.  EXERCISE  PERIOD.  The  Optionee  (or in the  event of the death of the
Optionee,  the  Optionee's  successor in interest) may exercise the Option as to
those Option Shares which have theretofore vested as herein provided at any time
prior to the first to occur of the following events:

     (i)  the expiration of ten years from the Date of Grant;

     (ii) the  expiration of one year from the date the Optionee  ceases to be a
          trustee of the Company,  unless the Optionee dies within said one-year
          period; or

     (iii) the expiration of one year from the date of the Optionee's death.

     4. MANNER OF EXERCISE.  An exercisable  Option, or any exercisable  portion
thereof,  may be exercised solely by delivery to the Secretary of the Company or
the  Secretary's  office of all of the  following  prior to the time as of which
such Option ceases to be exercisable:

     (a)  notice in writing signed by the Optionee or other person then entitled
          to exercise such Option or portion  thereof,  stating that such Option
          or portion is exercised,  such notice  complying  with all  applicable
          rules set forth in the Plan or otherwise  established by the committee
          appointed to administer the Plan (the "Committee");

     (b)  full  payment for the Option  Shares with respect to which such Option
          is thereby exercised, as follows:

          (i)  in cash or by check;  or

          (ii) with the consent of the Committee,  in Shares previously acquired
               by the Optionee duly endorsed for transfer to the Company, with a
               "Fair Market  Value" (as that term is defined in the Plan) on the
               date of Option  exercise  equal to the aggregate  Option price of
               the Option Shares with respect to which this Option or portion is
               thereby exercised; or

          (iii) with the consent of the  Committee,  any other  means  which the
               Committee determines to be consistent with the Plan's purpose and
               applicable law; or

<PAGE>
          (iv) with  the  consent  of  the  Committee,  any  combination  of the
               consideration provided in the foregoing subsections (i), (ii) and
               (iii);

     (c)  such  representations and documents as the Committee,  in its absolute
          discretion, deems necessary or advisable to effect compliance with all
          applicable  provisions  of the  Securities  Act of 1933 and any  other
          federal or state securities laws or regulations;  and

     (d)  in the event that the Option or a portion  thereof  shall be exercised
          by any person or persons other than the Optionee, appropriate proof of
          the right of such person or persons to exercise  the Option or portion
          thereof.

     5.  TRANSFERABILITY.  This Option is personal to the  Optionee and the same
may not in any manner or in any respect be assigned or  transferred,  other than
by will or the laws of descent and distribution.

     6. MISCELLANEOUS.

     (a)  The  rights  herein  granted  are  in  all  respects  subject  to  the
          provisions  set forth in the Plan to the same extent and with the same
          effect as if set forth fully herein.

     (b)  The  granting of this Option  shall not be  construed as giving to the
          Optionee any right to be retained as a member of the  Company's  Board
          of Trustees.

     (c)  This Option  shall not be treated as an  incentive  stock option under
          the Internal Revenue Code of 1986, as amended.

     (d)  The validity,  interpretation  and effect of this  Agreement  shall be
          governed  by  the  laws  of  the  State  of  Maryland,  excluding  the
          "conflicts of laws" rules thereof.

     IN WITNESS WHEREOF, the parties hereto have duly executed this Agreement on
the day and year first above written.

OPTIONEE                               PRIME GROUP REALTY TRUST

                                       By:
                                          --------------------------------------
(name)                                 Its:
                                           -------------------------------------

                        [MILES & STOCKBRIDGE LETTERHEAD]

                                                              September 30, 1998

Prime Group Realty Trust
77 West Wacker Drive, Suite 3900
Chicago, Illinois  60601

Ladies and Gentlemen:

     In connection with the  registration  under the Securities Act of 1933 (the
"Act") of 1,850,000  Common  Shares of Beneficial  Interest,  $.01 par value per
share (the "Common Shares"), of Prime Group Realty Trust, a Maryland real estate
investment trust (the "Trust"), on its Registration  Statement on Form S-8 filed
with the Securities and Exchange Commission (the "Registration  Statement"),  we
have  examined  such trust  records,  certificates  and  documents  as we deemed
necessary for the purpose of this opinion. Based on that examination,  we advise
you that in our opinion the Common Shares have been duly and validly  authorized
and  reserved  for  issuance  under the Share  Incentive  Plan of the Trust (the
"Plan")  and,  when issued in  accordance  with the Plan or upon the exercise of
options or other  securities  issued  under the Plan that are  exercisable  into
Common Shares, will be legally issued, fully paid and non-assessable.

         We hereby  consent to the  filing of this  opinion as an exhibit to the
Registration  Statement.  In giving our consent, we do not thereby admit that we
are in the category of persons whose consent is required  under Section 7 of the
Act or the rules and  regulations  of the  Securities  and  Exchange  Commission
thereunder.  The opinion expressed herein is limited to the matters set forth in
this letter and no other opinion should be inferred beyond the matters expressly
stated.

                                            Very truly yours,

                                            Miles & Stockbridge P.C.

                                            By: /s/ J.W. Thompson Webb
                                               ---------------------------------
                                               Principal


                                                                   EXHIBIT 23.2

                         CONSENT OF INDEPENDENT AUDITORS

We consent to the incorporation by reference in the Registration Statement (Form
S-8) related to the Prime Group Realty Trust Share Incentive Plan of Prime Group
Realty  Trust  of  our  reports  dated  March  27,  1998  with  respect  to  the
consolidated  financial  statements  of Prime Group  Realty  Trust and  combined
financial statements of the Predecessor  Properties,  dated August 20, 1997 with
respect to the combined  statement of revenue and certain  expenses of the Prime
Industrial  Contribution  Properties,  the  combined  statement  of revenue  and
certain  expenses of the IBD Properties,  the combined  statement of revenue and
certain  expenses of Salt Creek Office Center,  and the statement of revenue and
certain  expenses of Citibank Office Plaza,  dated October 10, 1997 with respect
to the combined statement of revenue and certain expenses of NAC Properties, the
statement  of revenue  and  certain  expenses  of 280 Shuman  Boulevard  and the
statement of revenue and certain  expenses of 475  Superior,  dated  December 5,
1997  with  respect  to  the  statement  of  revenue  and  certain  expenses  of
Continental Office Towers,  dated December 2, 1997 with respect to the statement
of revenue and certain  expenses of 180 North LaSalle Street,  dated December 4,
1997 with  respect to the  statement  of revenue  and  certain  expenses of 2675
Mayfair,  dated  November 24, 1997 with respect to the  statement of revenue and
certain  expenses of 33 North Dearborn,  dated December 20, 1997 with respect to
the statement of revenue and certain  expenses of Commerce Point,  dated January
30, 1998 with respect to the  statement  of revenue and certain  expenses of 208
South LaSalle  Street and the  statement of revenue and certain  expenses of 122
South  Michigan  Avenue,  dated April 16, 1998 with respect to the  statement of
revenue and certain  expenses  of 6400 Shafer  Court,  dated April 23, 1998 with
respect to the statement of revenue and certain  expenses of Two Century  Centre
and dated May 29,  1998 with  respect to the  statement  of revenue  and certain
expenses of Oak Brook Business  Center included in the Prospectus of Prime Group
Realty  Trust  (File No.  333-51599)  filed  with the  Securities  and  Exchange
Commission.

                                                     /s/ Ernst & Young LLP

Chicago, Illinois
September 30, 1998


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