1, file search can find out the property rights of second-hand houses, such as whether they are mortgaged or not, and whether there are multiple property owners.

2. Check all kinds of real estate files and promise the service period: if the documents are complete and the procedures are complete, they will be provided on the same day; If the query cannot be provided at that time, it will be provided within 10 working days from the date of accepting the application (including the query of the distribution files before 1988 within 5 working days after accepting it).

3, apply for government information disclosure, reply within 15 working days from the date of accepting the application, if it is necessary to extend the reply period, the longest extension of the reply period shall not exceed 15 working days.