Under the relevant laws of our country, no one can inquire except the owner himself, unless the parties entrust others to handle the notarization entrustment. If the real estate involves the need of handling a case, under the registration of the judicial department, you can also consult the real estate information of the parties with relevant documents. Before buying and selling second-hand houses, it is necessary to investigate the property rights of the houses themselves to find out whether there is mortgage or freezing.
Click to view: How to inquire about house property right information?