Secondary mortgage refers to re-mortgaging the mortgaged property and obtaining loans from specific lenders. The applicant only needs to go through the mortgage registration formalities once to realize the maximum mortgage loan. After obtaining the maximum loan amount, the loan can be withdrawn by stages as needed, and the interest calculation time is based on the actual payment time of each payment. This can save a lot of unnecessary interest costs. Mainly according to the specific requirements of the regional construction committee, usually only the applicant's real estate license (real estate ownership certificate or house ownership certificate, land use right certificate or house purchase contract and * *) and identity documents (resident [1] ID card, * * and so on are needed. ) are needed. According to the time of spending money in each district and county and the time of handling other rights certificates, in general, the loan can be released on the day of receiving other rights certificates. In addition: Article 199 of the Property Law stipulates that if the same property is mortgaged to more than two creditors, the proceeds from auction and sale of the mortgaged property shall be paid off in accordance with the following provisions: (1) If the mortgage registration has been completed, it shall be paid off in the order of registration; In the same order, it shall be paid off according to the proportion of creditor's rights; (2) The registered mortgage is paid off before the unregistered mortgage; (3) If the mortgage is not registered, it shall be paid in proportion to the creditor's rights. "Measures for the Administration of Urban Real Estate Mortgage" Article 43 If more than two mortgages are set for the same real estate, compensation shall be paid in the order of mortgage registration.