Legal analysis: there is no time limit. Maintenance fund is a special fund set up after the sale of commercial housing and public housing, which is used for the overhaul, renewal and transformation of residential parts and facilities after the warranty period expires. Regarding the use of maintenance funds, the relevant national policies and regulations have long given every owner the right to use maintenance funds for maintenance. In the process of operation, every owner can choose to sign or not to sign completely voluntarily, and the final result is determined by the principle that the minority is subordinate to the majority (the signature must be more than two-thirds before it can be used). The owners of commercial housing and non-residential housing shall deposit special housing maintenance funds according to the construction area of their own property, and the amount of the first special housing maintenance funds deposited per square meter of construction area is 5% to 8% of the cost per square meter of local residential construction and installation projects.

The competent departments of construction (real estate) of the people's governments of municipalities directly under the central government, cities and counties shall, according to local conditions, reasonably determine and announce the amount of the first-phase residential special maintenance fund deposited per square meter of construction area, and make timely adjustments.

Legal basis: Article 240th of the Civil Code of People's Republic of China (PRC), the owner has the right to possess, use, profit from and dispose of his real estate or movable property according to law.