Legal analysis: You can check out. In any of the following circumstances, the parties may terminate the contract: (1) The purpose of the contract cannot be achieved due to force majeure; (two) before the expiration of the performance period, one party clearly indicated or indicated by his own behavior that he would not perform the main debt; (three) one party delays the performance of the main debt and fails to perform it within a reasonable period after being urged; (four) the parties delayed the performance of their debts or other breaches of contract, which made the contract impossible to realize; (5) Other circumstances stipulated by law. It can be seen that as long as the developer has the above situation, such as serious overdue delivery or poor quality. , and meet the termination conditions stipulated by law or agreed in the purchase contract, the buyer may terminate the purchase contract according to law.

Legal basis: Civil Code of People's Republic of China (PRC).

Article 562 The parties may terminate the contract through consultation. The parties may agree on the reasons for one party to terminate the contract. When the reasons for the termination of the contract arise, the creditor may terminate the contract.

Article 563 The parties may terminate the contract under any of the following circumstances: (1) The purpose of the contract cannot be achieved due to force majeure; (two) before the expiration of the time limit for performance, one party clearly indicated or indicated by his own behavior that he would not perform the main debt; (three) one party delays the performance of the main debt and fails to perform it within a reasonable period after being urged; (4) One of the parties delays the performance of debts or commits other breach of contract, which makes it impossible to achieve the purpose of the contract; (5) Other circumstances stipulated by law. For an indefinite contract whose content is to continue to perform debts, the parties may terminate the contract at any time, but they shall notify the other party before a reasonable time limit.