EXHIBIT (a)(4)

                                   SCHEDULE TO

         Equity Resource Lexington Fund LP, Eggert Dagbjartsson, its general
partner and Equity Resources Group, Inc., its manager (collectively the
"Purchaser") is offering (the "Offer") to purchase 2,000 units ("Units") of
limited partnership interests in Winthrop Partners 79 Limited Partnership (the
"Subject Company") for a purchase price of $375 per Unit in cash. The Offer and
withdrawal rights will expire on MAY 13, 2002 ("Expiration Date").

         Offer materials will be mailed to record holders, beneficial holders,
brokers, banks and similar persons whose name appears on the list of limited
partners of the Subject Company ("Limited Partners"). You may obtain a copy of
the tender offer materials with respect to the Offer by calling Equity Resources
Group, Inc., the manager of the Offer, at (617) 876-4800. The Purchaser does not
currently intend to establish control of the Subject Company. The general
partner of the Subject Company has not approved or disapproved of the Offer.

         If more than 2,000 Units are validly tendered and not withdrawn,
Purchaser will accept up to 2,000 Units, on a pro rata basis. If Purchaser
decides to extend the Offer, Purchaser will promptly send each Limited Partner
notification of that fact. For Units to be validly tendered pursuant to the
Offer, a properly completed and duly executed Agreement of Sale must be received
by Purchaser. A cash payment for Units will be made within 10 business days
following the expiration date of the Offer, as long as the Purchaser has
received a properly completed and duly executed Agreement of Sale and assurances
from the general partner of the Subject Company that the address applicable to
the holder of those Units will be changed to Purchaser's address. Units tendered
pursuant to the Offer may be withdrawn at any time prior to the Expiration Date.
In the event that the Offer is extended beyond the Expiration Date, the Units
tendered may be withdrawn at any time up to the date that the Offer, as
extended, expires. For a withdrawal to be effective, a signed, written or
facsimile transmission notice of withdrawal must be timely received by
Purchaser.

         The information required by Exchange Act Rule 14d-6(d)(1) is contained
in the Offer to Purchase with respect to the Offer and is incorporated by
reference into this summary advertisement. The complete terms and conditions of
this Offer are set forth in the Offer to Purchase and related agreement of sale,
which are being filed today with the Securities and Exchange Commission and
mailed to Limited Partners.