1. Only houses that have completed the five certificates and passed the comprehensive completion acceptance can apply for the real estate license, while new houses usually get the real estate license in three months, and after the second-hand houses are transferred, they get the real estate license in about one month. 2. According to th《商品房销售管理办法》, real estate development enterprises should, within 90 days from the date of delivery of commercial houses, Submit the materials needed to handle the registration of house ownership to the real estate administrative department where the house is located. The real estate development enterprise shall assist the buyer of commercial housing to handle the formalities of land use right change and house ownership registration. Or if the buyer of the auction house fails to obtain the real estate license within 90 days from the delivery date of the house or the buyer of the completed commercial house fails to obtain the real estate license within 90 days from the conclusion of the contract, the developer shall bear the liability for breach of contract.