The wall of the residential building falls off, no matter how the property is handled.

Take the new house as an example: the falling off of the inner wall belongs to the quality problem of the house, and the developer is responsible for the maintenance. The property can assist in contact, but has no obligation to maintain contact. External wall peeling is also a housing quality problem, and the property company should find a developer for maintenance on behalf of the owner. If the property company fails to perform its obligations, the owner can urge it.