PROBLEM TO BE SOLVED : To simplify real estate investment and to provide an easy-to-understand management method of real estate investment, sales promotion of a single family house and diversification of investment risks.SOLUTION : By constructing an account management system, details including even video images are provided for the information of an investment object property, and the time and labor of property search and management, etc., are saved. In an operation area, demands for the lease of single-family houses are checked beforehand. In addition, an environment capable of providing real estate information in details to be reflected on the account system is provided. An operation company needs to operate profitable properties separately in order to provide the mechanism of diversifying risks of customers.COPYRIGHT : (C)2008, JPO&INPIT