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. Gift Letter For Mortgage Template.Your lender might give you a template to follow if you tell them you're using a gift for your down payment. Pin down the specifics of the property in question. Clearly state the property's address, ensuring there's no ambiguity about where the gift funds are intended. 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 gift letter is a note from a donor to your lender regarding cash funds for your mortgage down payment. A mortgage gift letter is a document that helps satisfy the requirement that a borrower's down payment funds come from legitimate sources. Mortgage gift letters tell the lender that money for your loan came from a gift. Lenders require gift letters when necessary.