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. Be Clear and Specific: Clearly state the amount of the gift, its purpose, and any specific conditions associated with 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. 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. "AmeriSave offers borrowers a standardized gift letter template," says Flynt. We'll also show you how to write a gift letter with a gift letter template so you can help your donor prepare for underwriting. The purpose of this letter is to document that the money does not need to be repaid as well as the donor's name, contract information, and relationship to you. In the letter, the donors must specify that the money is a gift. Send mortgage gift letter template via email, link, or fax.