A gift letter usually confirms that the money is an unconditional, non-repayable gift, identifies the donor and recipient, and states the amount and intended property purchase. Mortgage lenders may also ask for proof of the donor’s identity, source of funds and relationship to the applicant, along with their own declaration or supporting documents. Requirements vary between lenders, so check the lender’s current forms before transferring the money. If there is any expectation of repayment or an ownership interest, explain this to the lender and seek independent legal advice.