Legal analysis: Yes. Requirements of full auction house: 1. Housing property rights should be clear, meet the conditions for listing and trading stipulated by the state, and can enter the real estate market without any other mortgage. 2. The sum of the house age (calculated from the date of house completion) and the loan period cannot exceed 40 years. 3. Mortgaged houses are not included in the local urban reconstruction and demolition plan, and there are real estate licenses and land certificates issued by real estate departments and land management departments.

Legal basis: Article 49 of People's Republic of China (PRC) Urban Real Estate Management Law stipulates that real estate mortgage shall be handled with land use right certificate and house ownership certificate.