First, it is a gift for parents to buy a car and a house. There is no need to write IOUs, as long as they honor their parents in the future. Second, take the initiative to borrow money from parents, and write IOUs, not IOUs. Third, marriage and family money is a big deal. Whether borrowing money from parents or parents-in-law, both husband and wife should sign the IOUs. At least, borrowing money from parents-in-law must be signed by daughter-in-law, not by son. Borrowing money from parents-in-law must be signed by a son-in-law, not a daughter. In this way, divorce can only be used as the same debt. Borrowing money from parents-in-law, only the daughter signs the loan, and only the son signs the loan. Divorce can be used as a fake loan, not as a debt. I have borrowed 987650 yuan from my parents-in-law. The borrower's daughter-in-law is XXX and his son is XXX. Year month day. If you borrow from your parents-in-law, write about your parents-in-law, son-in-law and daughter.