How to protect rights when the wall of commercial housing is empty and slag falls off seriously

This kind of property will definitely be said to be a developer's business, but if this happens only in your home, you can't find a developer at all. At present, if you are looking for property maintenance, it must be free maintenance. Until you are satisfied, you will not pay the property fee without maintenance. If this happens to other families, you should try to unite to find property rights protection. If the property cannot be solved at this time, he will take the initiative to contact the developer. In your case, the most practical thing at present is to find property maintenance, which he cannot shirk!