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. It states how much you're getting and from whom.Use a Texas Gift Deed to give real estate to another person or an entity. Gifting real estate among spouses or family members is fairly common. The lender is requiring me to write a gift letter stating I'm gifting my SO the down payment, with no expectation of being repaid. Edit, sign, and share gift letter for mortgage online. No need to install software, just go to DocHub, and sign up instantly and for free. A gift letter is a note from a donor to your lender regarding cash funds for your mortgage down payment. You are not required to sign a promissory note to your mother after receiving a financial gift for a mortgage from your father. A gift letter is proof to the lender that the funds were gifted to a homebuyer for their home purchase, and not a loan or borrowed money.