1. Carefully check relevant documents. Development projects must obtain "Land Use Rights Certificate", "Construction Land Planning Permit", "Construction Project Planning Permit" and "Construction Project Construction Permit"; check the developer Whether you have obtained the "Commercial Housing Sales (Pre-Sale) License" and verify whether the house you intend to purchase is within the range of building numbers stated on the "Commercial Housing Sales (Pre-Sale) License". 2. Pay attention to the deposit terms. When buyers purchase off-plan properties, they generally have to pay a deposit to the developer. According to the "Guarantee Law", the amount of deposit agreed by both parties cannot exceed 20% of the total contract price. 3. Distinguish between deposit and advance payment 4. Pay attention to the area in the house purchase contract 5. Pay attention to the force majeure clause in the house purchase contract Delayed delivery is one of the most prominent problems in commercial housing transactions. In order to avoid liability for breach of contract, developers often use force majeure as an excuse. In order to avoid losses in this area, home buyers must pay great attention to the relevant clauses involving force majeure when signing a contract. 6. Agreement on the developer’s obligation to obtain property rights certificates.