The letter must explain who is gifting the money, where the donor's funds are coming from and the relationship between the donor and the recipient. A gift letter for a mortgage shows your lender that you don't need to repay gift money toward your down payment.Use our mortgage gift letter A short letter like this sample gift letter will cover all of the requirements your lender needs. A gift letter is a note from a donor to your lender regarding cash funds for your mortgage down payment. A gift letter for a mortgage is a written statement confirming that the gift money you receive from a family member or friend is a gift, not a loan. This guide explains how to document gift funds for a mortgage and meet lender requirements. If the money was gifted to both of you, then the answer is simple. The money is a marital asset and will be divided equitably in the divorce. First Suffolk Mortgage Corporation (First Suffolk) was incorporated in the state of New York in.