Legal analysis: If you have a mortgage to apply for a real estate license, you need to bring your ID card, household registration book, marriage certificate, house purchase contract, relevant property right certificate and other materials to the housing management department to submit the application, and the developer will handle the initial registration of property rights in the housing management bureau; The housing management department carries out surveying and mapping on the real estate, issues receipts, pays taxes according to the date specified in the receipts, and handles the mortgage registration of the real estate license after receiving the real estate license.

Legal basis: "Measures for the Administration of Urban Real Estate Mortgage" Article 30 Within 30 days from the date of signing the real estate mortgage contract, the mortgage parties shall go through the real estate mortgage registration at the real estate management department where the real estate is located.

"Urban Real Estate Management Law" Article 61 When real estate is transferred or changed, it shall apply to the real estate management department of the local people's government at or above the county level for registration of change of real estate, and apply to the land management department of the people's government at the same level for registration of change of land use right on the basis of the changed house ownership certificate. After verification by the land administration department of the people's government at the same level, the land use right certificate shall be replaced or changed by the people's government at the same level. If it is otherwise provided by law, it shall be handled in accordance with the provisions of relevant laws.

Article 210 of the Civil Code stipulates that the registration of real estate shall be handled by the registration agency where the real estate is located. The state implements a unified registration system for real estate. The scope, organization and method of unified registration shall be stipulated by laws and administrative regulations.