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. 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.This gift is to be applied toward the purchase of the property located at: (Property Address). 3). This guide explains how to document gift funds for a mortgage and meet lender requirements. Yes, all lenders will require a gift letter. Although you may have the funds, the lender needs to confirm that you won't have to repay the gift. A mortgage gift letter is a document that helps satisfy the requirement that a borrower's down payment funds come from legitimate sources. A gift letter is a written explanation provided to your mortgage lender when someone else gives you money toward a home purchase. Use our mortgage gift letter template and write yours. A statement that it is a gift.