One of the issues that is causing concern in Japan is the lack of management in condominiums as the population ages. Sometimes called “ghost condominiums,” the aging of condominium residents has led to an increase in the number of people who are in arrears with the management fees and repair reserve funds needed to manage and operate the condominiums, and there are also concerns that the rooms of residents who have moved into nursing homes are becoming vacant. There are also concerns that the rooms of residents who have moved into nursing homes may become vacant. In condominiums, the management and operation of the condominium building and facilities is carried out by the management association organized by the residents. The cooperation and interest of the residents in the maintenance of the building and grounds will help to build a comfortable living environment.