After the developer's property expired, he changed to a new property. Can he not sign the contract and pay the property fee?

Property contract, the property company is not signed with the owner.

Before the house was sold to the owners' meeting, the property company signed a contract with the developer.

After the establishment of the owners' meeting, the property company is the industry Committee (decided by the owners' meeting).

In other words, the property company will not sign a contract with the owner alone.