1. Is the house complete?
2. Whether the property right is clear and uncontroversial.
3. Is the trading room rented?
4. Is the land situation clear?
5. Does the municipal planning have an impact?
6. Whether the house is legal and whether there are illegal buildings.
7, whether the unit housing infringement.
8, water, electricity, heating property fees are in arrears, household registration migration.
9. Is the intermediary company illegal?
10. Is the contract clear?
If we can pay attention to the above points, it is safer and more reasonable for both parties to the transaction.