EXHIBIT 99.3

                          NOTICE OF GUARANTEED DELIVERY



      This form, or one  substantially  equivalent to this form, must be used to
exercise  Subscription  Rights pursuant to the Rights Offering  described in the
prospectus, dated [____ __, 2002] (the "Prospectus"),  of Grubb & Ellis Company,
a Delaware  corporation,  if a holder of Subscription  Rights cannot deliver the
Subscription    Certificate(s)   evidencing   the   Subscription   Rights   (the
"Subscription  Certificate(s)"),  to the  Subscription  Agent  listed below (the
"Subscription Agent") at or prior to 5:00 p.m., New York City Time, on [____ __,
2002] (as it may be extended,  the "Expiration  Date"). The Notice of Guaranteed
Delivery  must  be  sent  by  hand,  facsimile   transmission  or  mail  to  the
Subscription  Agent, and must be received by the Subscription  Agent on or prior
to  the  Expiration  Date.  See  "The  Rights  Offering  -  Guaranteed  Delivery
Procedures"  in the  Prospectus.  Regardless  of the manner of  delivery  of the
Subscription  Certificate,  payment of the Subscription  Price of [$ ___. __ __]
per share for each share of Common Stock  subscribed  for upon  exercise of such
Subscription  Rights must be received  by the  Subscription  Agent in the manner
specified in the Prospectus at or prior to 5:00 p.m., New York City Time, on the
Expiration   Date,  even  if  the  Subscription   Certificate   evidencing  such
Subscription  Rights is being delivered pursuant to the procedure for guaranteed
delivery  thereof.  The Subscription  Certificate  evidencing such  Subscription
Rights must be  received by the  Subscription  Agent  within  three (3) New York
Stock  Exchange  trading  days  after  the date of  execution  of the  Notice of
Guaranteed Delivery.

      The address and facsimile numbers of the Subscription Agent, Computershare
Trust Company of New York are as follows:

    IF BY HAND DELIVERY OR OVERNIGHT DELIVERY:

                     Computershare Trust Company of New York
                                Wall Street Plaza
                           88 Pine Street, 19th Floor
                            New York, New York 10005
                            Telephone: (212) 701-7624
                            Facsimile: (212) 701-7636

    IF BY FIRST CLASS MAIL OR REGISTERED MAIL:

                     Computershare Trust Company of New York
                               Wall Street Station
                                  P.O. Box 1010
                          New York, New York 10268-1010
                            Telephone: (212) 701-7624
                            Facsimile: (212) 701-7636

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   DELIVERY OF THIS  INSTRUMENT  TO AN ADDRESS  OTHER THAN AS SET FORTH ABOVE OR
TRANSMISSION OF INSTRUCTIONS  VIA A FACSIMILE OTHER THAN AS SET FORTH ABOVE DOES
NOT CONSTITUTE A VALID DELIVERY.

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Ladies and Gentlemen:

      The  Undersigned  hereby  represents  that  he or  she is  the  holder  of
Subscription  Certificate(s)  representing Subscription Rights issued by Grubb &
Ellis Company and that such Subscription  Certificate(s)  cannot be delivered to
the  Subscription  Agent at or before  5:00  p.m.,  New York City  Time,  on the
Expiration  Date.  Upon the terms and subject to the conditions set forth in the
Prospectus,  receipt of which is hereby  acknowledged,  the  undersigned  hereby
elects to exercise the  Subscription  Privilege  to  subscribe  for one share of
Common  Stock per  Subscription  Right with  respect to the number of shares set
forth   below   pursuant   to  the  Basic   Subscription   Privilege   plus  the
Over-Subscription Privilege described in the Prospectus:

No. of Shares subscribed for pursuant to Basic Subscription Privilege: _________

      plus

No. of Shares subscribed for pursuant to Over-Subscription Privilege:  _________

      TOTAL:

      ---------

      multiplied by the Subscription Price of [$ ___ . __ __ ]
      per share                                                        _________

      TOTAL PAYMENT DUE:                                             $ =========

      The undersigned  understands that payment of the Subscription  Price of [$
___ . __ __ ] per share for each share of Common  Stock  subscribed  pursuant to
the Basic  Subscription  Privilege and the  Over-Subscription  Privilege must be
received by the  Subscription  Agent at or before 5:00 p.m., New York City Time,
on the Expiration Date and represents that such payment, in the aggregate amount
set forth above, either (check appropriate box):

      [_] is being delivered to the Subscription Agent herewith; or

      [_] has been delivered separately to the Subscription Agent; and

is or was  delivered  in the manner set forth below (check  appropriate  box and
complete information relating thereto):

      [_]  uncertified  check (NOTE:  Payment by  uncertified  check will not be
deemed to have been  received  by the  Subscription  Agent  until such check has
cleared.  Holders paying by such means are urged to make payment sufficiently in
advance of the Expiration Date to ensure that such payment clears by such date.)

      [_] certified check

      [_] bank draft (cashier's check)

      [_] money order

      [_] wire transfer of immediately available funds

            Name of Transferor Institution: ___________________

            Date of Transfer:               ___________________

            Confirmation Number:            ___________________
            (If available)

      If by  certified  check,  bank draft or money  order,  please  provide the
following information:

      Name of maker:____________________________________________________________

      Date of check, draft or money order:______________________________________

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      Bank on which check is drawn or issuer of money order:

Signature(s):                                Address:
              ------------------------------         ---------------------------

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

              ------------------------------         ---------------------------
                                                     (please type or print)




Name(s)                                     Telephone:
              ------------------------------         ---------------------------

Name(s)                                      Telephone:
              ------------------------------         ---------------------------
                                                     (please type or print)
Subscription
Certificate No.(s):
                   ---------------------------------

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                 THE GUARANTEE SET FORTH BELOW MUST BE COMPLETED

                              GUARANTEE OF DELIVERY
        (NOT TO BE USED FOR SUBSCRIPTION CERTIFICATE SIGNATURE GUARANTEE)

      The  undersigned,  a member  firm of the New York Stock  Exchange or other
registered national securities exchange or member of the National Association of
Securities Dealers,  Inc.,  commercial bank or trust company having an office or
correspondent in the United States, or another "Eligible Guarantor  Institution"
as  defined  in Rule  17Ad-15  under the  Securities  Exchange  Act of 1934,  as
amended,  hereby  guarantees  that within three New York Stock Exchange  trading
days  after  the date set forth  below,  the  undersigned  will  deliver  to the
Subscription Agent the Subscription  Certificates  representing the Subscription
Rights being exercised hereby,  with any required  signature  guarantees and any
other required documents.

Name of Firm:___________________________________________

Address:________________________________________________

        ____________________Zip Code:___________________

Area Code and Tel. No.:_________________________________

Authorized Signature:___________________________________

Name:___________________________________________________
                    (please type or print)

Title:__________________________________________________

Date:___________________________________________________

      The institution  which completes this form must  communicate the guarantee
to the Subscription Agent and must deliver the Subscription  Certificates to the
Subscription  Agent within the time period shown herein.  Failure to do so could
result in a financial loss to such institution.

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