After the house is sold, will the property return the house maintenance fund to the tenants?

At present, it should be called special maintenance funds for the maintenance, renewal and transformation of public parts and public facilities and equipment after the expiration of the property warranty period. Once paid, it cannot be returned to the owner. After the transfer of property rights, the new owners will also pay special maintenance funds monthly. However, because the detailed rules for the implementation of the national property management regulations have not yet come out, there may be different practices in various places, but they are definitely not refundable.