EXHIBIT (a)(2)

                         Equity Resource Lexington Fund
                                44 Brattle Street
                               Cambridge, MA 02138

                                 April 12, 2002

                           Offer To Purchase Units in
                    Winthrop Partners 79 Limited Partnership
                                for $375 Per Unit

Dear Limited Partner:

Enclosed with this letter is an offer to purchase limited partnership units in
Winthrop Partners 79 Limited Partnership (the "Partnership") for $375 per unit
[See "THE OFFER-Introduction"]. This offer expires on May 13, 2002. If you are
interested in selling your units, please read the enclosed offer carefully.

FACTORS TO CONSIDER IN EVALUATING THIS OFFER

o    Recent Events and Their Impact on the Partnership's Value: Several recent
     events have had an impact on the Partnership's value. Since 1999, two of
     the Partnership's properties have been sold and the proceeds were
     distributed to limited partners. The sales of these properties have
     decreased the equity value of the Partnership and they will likely impact
     future Partnership distributions from operations. Additionally, the
     Partnership has distributed a substantial portion of its cash reserves over
     the past year. These cash distributions have further impacted the equity
     value of your units. [See "THE OFFER-Section 10-Certain Information
     Concerning the Partnership"]

o    Uncertainty Concerning One of the Partnership's Properties: The tenant at
     the Partnership's Hillside, IL property recently filed for Chapter 11
     bankruptcy. Though the tenant continues to make lease payments, it is
     unclear whether it will seek to reject its lease on the property. If the
     tenant rejects the lease, the Partnership may incur significant costs in
     attempting to re-lease the property.

o    Opportunity for Liquidity: The Lexington Fund's offer provides liquidity to
     limited partners and will give them an opportunity to liquidate this
     investment. The Partnership has been in existence for 13 years. Given the
     long-term nature of the leases encumbering the Partnership's properties,
     the Purchaser anticipates that the Partnership will continue to operate for
     the foreseeable future. By selling your limited partnership units, you give
     yourself the opportunity to place the proceeds from a sale into other,
     potentially better performing, investments. You may also simplify your tax
     returns by eliminating future K-1 reporting for this Partnership.

o    Offer Price May Not Represent the Full Value of Your Units: No independent
     party has been retained by the Purchaser or any other person to evaluate or
     render any opinion to limited partners with respect to the fairness of the
     offer price, and no representation is made as to any fairness or other
     measures of value that may be relevant to limited partners. The Purchaser
     has calculated a




     net asset value (NAV) for Units that is higher than the Purchaser's offer
     price, but has not calculated a liquidation value for Units. It is
     uncertain whether the offer price or the NAV reflect the value that would
     be realized upon the sale of units by a limited partner to a third party.
     [See "THE OFFER-Introduction-Market Value of Units"]

o    Conflict of Interest: The Purchaser is making the Offer with a view toward
     making a profit. Accordingly, there is a conflict between the Purchaser's
     desire to acquire your units at a low price and your desire to sell your
     units at a high price. The Purchaser's intent is to acquire the units at a
     discount to the value it might ultimately realize from owning the units.

o    Effects of a Sale of Your Units: Limited partners who sell their units will
     be giving up the opportunity to participate in any future potential
     benefits associated with ownership of units, including the right to
     participate in any future distribution of cash or property.

The Purchaser

The Lexington Fund is in the business of acquiring fractional investment
interests for long-term retention and seeks to purchase units in the Partnership
in advancement of that strategy. The units acquired as a result of this offer
will be held as long-term investments and not with a view to a resale. The
Lexington Fund does not acquire general partner positions and is not engaged in
property management.

Please read the enclosed offer carefully. It contains important information
concerning this offer, the Partnership and the Purchaser. If you wish to sell
your units, complete the enclosed Agreement of Sale according to the directions
on the agreement, sign where indicated and return it in the pre-addressed return
envelope.

If you have any questions, please call D.F. King & Company, the information
agent for this offer, toll-free at (800) 207-3158 or call them collect at (212)
493-6952.

Sincerely,


Equity Resource Lexington Fund LP