Let me answer this question: when the real estate license provided by the original seller is true or false, the staff of the housing management office will be responsible for verifying it. If the transaction proves to be false, the housing management office still accepts it, and it is impossible for the general housing management office to pay the responsibility. If it is true, then the responsibility of the housing management department can be investigated. They have the responsibility to distinguish between true and false, and failure to do so is the responsible party for dereliction of duty.
If the documents are all true, then the property rights will not change after the household registration, which can be assured.