1. The exact dollar amount of the gift. A gift letter must contain the donor's name, the gift's value, confirmation that the gift is not to be repaid, and the donor's signature.Mortgage gift letters tell the lender that money for your loan came from a gift. Lenders require gift letters when necessary. Instructions: Lender - Complete items 1 through 7. Have applicants complete item 8. Here's a sample gift letter you can use to prove that the money is truly meant as an outright gift, with no expectation of repayment. A second letter will accompany other official documents at the home's closing. Get An Official Appraisal. The purchaser's signature in section 3 is optional.