The owner refuses to sign the property service contract. Is it legal for the property not to give the key to the new house?

According to the Property Law, Property Management Regulations and other relevant laws, property management is a civil legal act between equal subjects, and the property contract concluded with the owner is the result of negotiation between both parties, and neither party has the right to force the other party to sign the contract. In addition, China's "Contract Law" also stipulates that the parties shall fully perform their obligations in accordance with the agreement. Therefore, as a developer, it is a breach of contract to collect Wang's house payment according to the contract and refuse to sign a property contract without giving the house key, which infringes on his legitimate rights and interests. Therefore, we can protect our legitimate rights and interests through litigation, that is, we can ask the court to order the delivery of the house and bear the legal responsibility for overdue delivery.