1. Determine whether the person who changed hands is the landlord or the lessee. If it is a landlord, please ask the landlord to produce a valid property right certificate, and check the building area and structure of the house according to the property right certificate.

2. check whether there has been any record of violation of law and discipline. Go to the industrial and commercial administration department and the tax department in person to find out whether the industrial and commercial management fee and the tax payable have been paid and whether there is a fine.

3. Are there any economic disputes with former employees?