I was unmarried when I took the house purchase contract and issued a single certificate. Later, I got married. When I applied for a bank loan, I didn't fill in my marital status truthfully. I applied as a single person. You should pay a deposit before signing the contract. If it is a problem of buying a house, there will be a clause in the commercial housing contract, because the buyer can't get a loan for personal reasons, and the buyer must bear the responsibility. But this depends on the negotiation between the two sides. Usually they will let you pay in one lump sum. However, the name change can be negotiated. ...