1, online query. Click on the links of provinces and cities to enter the websites of local real estate administrations, and you need to enter the name of the property owner and the title certificate number.
2. Housing Authority Inquiry: If you can't find the relevant mortgage information online, you need to bring your ID card and real estate license to the archives or windows of the local housing authority (real estate trading center, housing authority and housing management office) to inquire about the real estate license.