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. They insist on us signing a 'gift letter' to certify that the funds from my parents are not debt financing and that we will not owe interest payments to them.A short letter like this sample gift letter will cover all of the requirements your lender needs. If you go through a bank they will provide the gift letter form to you to get completed. If someone provides a handwritten letter it is filed away. Gift Letter (If receiving gift funds) – Provide letter signed and dated along with proof of funds (donor statement) from each donor. A gift letter is a note from a donor to your lender regarding cash funds for your mortgage down payment. It states how much you're getting and from whom. Fill out your form and save the adjustments. Enter your zip code to see attorneys available in your area.