I have already explained this problem to another person. This house was built in 2002. The housing maintenance fee was only implemented in Harbin in 2006, and it was only in 10 years that the housing maintenance fee was required to buy and sell houses. It stands to reason that in 2006, each community should establish a housing maintenance fund and start collecting money. But it seems that this policy is poorly implemented, so many communities have not even been established. It stands to reason that when you buy a house, you should pay the housing maintenance fee, or the original owner will give you an invoice for the housing maintenance fee he paid. But as I said above, this community may not have established a housing maintenance fund in the first place, and the original homeowner never paid this money. This is easier to handle. They will rush to build the property in this community at the end of the year and then take the initiative to collect money. This is how the money is collected. The first deposit of maintenance funds is 20 yuan per square meter of construction area, and the "housing reform house" is 18 yuan per square meter of construction area. But if it is established, the original owner has not paid the housing maintenance fee. This is troublesome. Should you make up for all those from 2006 to 2010, or just pay for those from 2009? This is a legal issue. I can't answer. Or go and consult yourself.