Can property service enterprises "subcontract" their business?

It is understood that the new employee belongs to a housekeeping company, and the property management company entrusts all the property services in our community to the housekeeping company through the contract. The employees of the housekeeping company said that how to stipulate the property service contract has nothing to do with them. Can the property management company entrust the property services to others? How should our owners safeguard their legitimate rights and interests? Ms. Liu: Property service enterprises may not entrust all property services to others. If a realty service enterprise fails to perform its realty service obligations, the owner has the right to investigate its liability for breach of contract. The realty service enterprise shall provide corresponding services in accordance with the stipulations of the realty service contract. According to Article 2 of the Interpretation of the Supreme People's Court on Several Issues Concerning the Specific Application of Law in the Trial of Property Service Disputes, a property service enterprise entrusts all the property service business within the property service area to others and signs an entrustment contract. If the owners' committee or owners request to confirm that the contract or relevant clauses of the contract are invalid, the people's court shall support it. In this case, the property management company in your community entrusts all the property services to the housekeeping company in the form of contracting, and the owners' committee and owners of the community have the right to apply to the court to confirm that their entrustment contract or relevant clauses of the contract are invalid.