Legal subjectivity: 1. When selling commercial housing, the buyer and the seller shall sign a house maintenance fund payment agreement, and the buyer shall pay the house maintenance fund to the seller according to the proportion of 2-3% of the purchase price. 2. The maintenance fund collected by the selling unit belongs to all owners. 3. The current deposit standard of the first special maintenance fund is: 90 yuan/m2 for high-rise buildings (including multi-storey buildings with elevators) and 50 yuan/m2 for multi-storey buildings (including villas).

Objectivity of law: Article 281 of People's Republic of China (PRC) Civil Law states that the maintenance funds of buildings and their ancillary facilities belong to the owners. With the consent of the owner, it can be used for local maintenance, renewal and transformation of elevators, roofs, external walls and barrier-free facilities. The collection and use of maintenance funds for buildings and their ancillary facilities shall be announced regularly. In case of emergency, if the building and its ancillary facilities need to be repaired, the owners' assembly or the owners' committee may apply for the maintenance funds of the building and its ancillary facilities according to law.