PROBLEM TO BE SOLVED : To allow a real estate loan to be examined based on personal information of a customer and object information without requiring that the customer meets to a person-in-charge or the like in a real estate agent.SOLUTION : A control computer 21 transmits an electronic mail for an examination request to a guarantee agency terminal 12 when receiving an examination request data for the real estate loan from a customer terminal 11 and transmits to an object manager terminal 13 an electronic mail for notifying that the examination request is issued. The computer 21 transmits also a Web page for displaying the personal information and the object information to the guarantee agency terminal 12 in response to a transmission requirement from the terminal 12. The computer 21 transmits to the customer terminal 11 an electronic mail for notifying the finish of the examination with an examined result, when receiving an examined result data transmitted from the guarantee agency terminal 12 by a person in charge in a credit guarantee agency.