1. The first thing I got was the down payment receipt, which was the bill issued by the developer when you paid the down payment.

2. If you buy a new house for a down payment, you must have a down payment invoice.

3. When buying a new house, you must have a full invoice after the mortgage loan.

4. When buying a new house, you must have a maintenance fund invoice after the delivery.

5. When buying a new house, you must have a deed tax invoice after handing over the house.