Legal analysis: 1. Deliver the house to the buyer within 5 working days from the date of completing the registration procedures of house ownership transfer;

2. The seller shall deliver the house to the buyer within the agreed working days after receiving all the down payment from the buyer;

3. The seller shall pay the buyer all the purchase price (excluding the deposit for house delivery and account transfer) within the agreed working days;

4. Deliver the house to the buyer according to the agreed time or conditions.

Legal basis: People's Republic of China (PRC) City Real Estate Management Law.

Article 36 When transferring or mortgaging real estate, the parties concerned shall register the ownership in accordance with the provisions of Chapter V of this Law.

Article 62 When a real estate is mortgaged, it shall be registered with the department designated by the local people's government at or above the county level. Where the land use right and house ownership are obtained due to the disposal of mortgaged real estate, the transfer registration shall be handled in accordance with the provisions of this chapter.