The account is under the control of the police station of the Public Security Bureau, so you need to go to the police station to check whether there is an account, that is, to check the account. You can also take the corresponding household registration book and real estate license to the police station to inquire with the owner.
To view the corresponding account, you need to issue a real estate license, a house purchase contract or an intermediary contract. In other words, you need a contract or real estate license to check with the local police station. Obviously, as a property buyer, you can't get the real estate license; Holding the contract at the same time means that the contract has been signed. Otherwise, it will be quite troublesome if something goes wrong.