Some bank real estate licenses are mortgaged by a third party, and the coordinates are Xi 'an. That is to say, let your father-in-law be the mortgagor and you can be the main lender. Preparation materials: your father-in-law's ID card, household registration book, marriage certificate, real estate license, property transfer and private seal. Your ID card, household registration book, marriage certificate, bank account in the last six months, etc. There are also some banks that must be immediate family members to become major lenders.