How long is the validity period of the property pre-service agreement?

Two to five years. The term of the preliminary property contract is not clearly defined in law, and should be decided by both parties through consultation. The term of the realty service contract is two to five years. The specific term of the prophase realty service contract shall be agreed by the construction unit and the realty service enterprise, and the longest term shall be calculated from the date when the owners' congress signs the realty service contract with the realty service enterprise it selects.