Legal analysis: If the purchased commercial house does not meet the requirements for handling the real estate license and the borrower has paid off the loan in advance, the borrower may request the loan issuing bank to issue the loan repayment certificate with the latest housing provident fund loan repayment certificate and the housing provident fund loan cash payment form. Then, the borrower goes through the cancellation registration formalities in the city real estate trading center with the application for cancellation of registration and the registered commercial housing sales contract, and the real estate management department cancels the mortgage registration in the computer commercial housing pre-sale management system.

Legal basis: Article 35 of the Measures for the Administration of Urban Real Estate Mortgage, when the mortgage contract is changed or the mortgage relationship is terminated, the mortgage parties shall go to the original registration authority to change or cancel the mortgage registration within 15 days from the date of change or termination. If the mortgaged real estate is punished according to law and the land use right and the ownership of buildings and other attachments on the ground are obtained, the mortgagor shall, within 30 days from the effective date of the punishment, apply to the real estate management department of the local people's government at or above the county level for the registration of the transfer of house ownership, and apply to the land management department of the people's government at the same level for the registration of the change of land use right by virtue of the changed house ownership certificate.