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. Learn how to create a mortgage gift letter template to ensure a smooth homebuying process with your gifted funds with 6 samples.A gift letter is an important, formal, legal piece of documentation that can help explain that a (usually rather large) sum of money was gifted to you. 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 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. The person gifting the vehicle must complete a sales tax exemption form (MVU-24). A mortgage gift letter is a document that helps satisfy the requirement that a borrower's down payment funds come from legitimate sources.