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. 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. Mortgage Gift letter is what the donor of the gift writes to the lender stating that he has offered a gift of money to the home buyer. 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. Yes, your gift letter needs to be notarized. Also, both the donor needs to sign it to make it valid. A gift letter, from the donor to the lender, includes the donor's name, address, and phone number. How do I write a letter for a gift money mortgage? A gift letter for a mortgage shows your lender that you don't need to repay gift money toward your down payment.