Does the property changing company need to sign a new contract with the owner?

Legal analysis: it depends on whether the previous property company and the new property company have signed an agreement on the transfer of relevant rights, as well as the contract agreement between you and the previous property company. Under normal circumstances, you don't need to sign, just sign with the owners' Committee.

Legal basis: Article 469 of the Civil Code of People's Republic of China (PRC), the parties may conclude a contract in written form, orally or in other forms. Written form refers to contracts, letters, telegrams, telexes, faxes and other forms that can tangibly express the contents contained. A data message that can tangibly express its content through electronic data interchange, e-mail, etc. , and can be retrieved at any time, are considered in writing.