Legal analysis: Yes, both parties can terminate the sales contract through consultation. But you can't check out at will, because it will bring some losses to the seller. General check-out needs to meet certain conditions:

1. The absolute error between the measured area and the area agreed in the contract exceeds 3%.

2. The developer's overdue delivery constitutes a fundamental breach of contract, that is, the overdue delivery reaches the check-out date agreed in the contract.

3. The developer changes the planning and design, which affects the structural type, apartment type, space size and orientation of the house.

4. The developer presales houses that have not obtained the pre-sale permit of commercial housing (except houses that have intentionally concealed the pre-sale permit).

5. The quality of the main structure of the house delivered by the developer is unqualified or the quality of the house seriously affects the normal use of the house.

6 can not or can not handle the transfer of property rights on schedule.

7. The buyer's loan application was not approved, and both parties to the contract could not reach an agreement on the payment method.

8. When other check-out conditions agreed in the contract appear.

Legal basis: Article 562 of the Civil Code of People's Republic of China (PRC), the parties can 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.