Legal analysis: the public housing maintenance fund is paid by all owners and belongs to all owners. Entrusted by the real estate department, after the establishment of the owners' committee, the housing maintenance fund will be handed over to the industry committee, which will exercise the management right. The maintenance fund collected by the selling unit belongs to all owners and is not included in the residential sales income. The current deposit standards of the first special maintenance fund are: 90 yuan per square meter for high-rise buildings (including multi-storey buildings with elevators) and 50 yuan per square meter for multi-storey buildings (including villas). When selling commercial housing, the purchaser and the selling unit shall sign the relevant housing maintenance fund payment agreement, and the purchaser shall pay the housing maintenance fund to the selling unit according to the proportion of 2-3% of the purchase price.

Legal basis: Article 281 of the Civil Law of People's Republic of China (PRC), the maintenance fund of the building and its ancillary facilities belongs to the owner. 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.