Does the leaking property upstairs have the obligation to provide the owner information upstairs?

Yes According to China's trip to official website. Lawyers are entrusted to the property office to obtain identity information. Prosecution requires a complaint, the identity information of the original defendant, and evidence (evidence related to the loss of the house and water leakage upstairs). The property has the obligation to cooperate, and the property can provide specific information upstairs, including the owner's name, contact information, real estate license, etc. If the downstairs sues the upstairs, the property can provide the necessary information to assist the court to investigate and solve it.