Lawyers reminded that when buying a second-hand house, the owners must first find out whether the owners in Chu Yuan are in arrears on the premise of ensuring the quality of the house. If there is any default, the seller shall be required to settle it in time, and it shall be stipulated in the transfer contract. At the same time, the buyer can also avoid such disputes by reserving a deposit. For example, when signing a contract, you can stipulate a certain deposit in the contract. After the house is delivered, the buyer can change the subject of the contract with the title certificate to the water, electricity and property departments. If the seller conceals the facts and refuses to pay the arrears, the buyer can use the reserved deposit to pay.