legal ground
Article 271 of the Civil Code of People's Republic of China (PRC)
Owners have the ownership of exclusive parts of buildings such as houses and business buildings, and have the right to co-manage the parts other than the exclusive parts.
Article 273
The owner shall enjoy the rights and undertake the obligations for the part other than the exclusive part of the building; You may not fail to perform your obligations on the grounds of giving up your rights.
When the owner transfers the residential and business premises in the building, part of its * * * ownership and * * * management rights are transferred together.