A real estate business management system broadly provides for responding to one or more users or groups of users by managing or otherwise conducting real estate business transactions or transaction aspects that may currently or subsequently correspond to one or more potential or actual real estate deals or groups of real estates deals. In this manner, system 100 provides for advancing toward completion the respective real estate deals or groups of real estate deals or indicating that completion of such deals or groups of deals should be avoided. The real estate business management system also provides for accumulating a knowledge base of real estate business data that may include data that is independent of a current real estate deal.