My boyfriend and I bought a house, and their family made a down payment, which was written by the head of the household. But now that my boyfriend and I have repaid the loan, what can I do to prove that the house is ours? ... According to your boyfriend on the phone, then you are not married, but the house loan is repaid by both of you, and the house purchase took place before marriage. According to the house purchase contract and marriage law, your boyfriend is the owner of the house, and you are only the repayment person. There is no evidence that you are the owner of the house. It can only prove that you are the borrower of the house loan. Want to let the house * * * with property rights, can only use two people * * * to buy a house contract instead, or when dealing with property rights, my boyfriend agreed to have a room with you * * *. As for notarization, it is useless. Personally, I suggest that when you repay, you transfer the money to the mortgage account by bank card transfer, which can at least prove that you are repaying. I'll tell you if you need anything.