A system and method for allowing a plurality of Sellers of real estate to either list their real estate ' By Owner' or ' By Agent.' Those Sellers that list ' By Owner' may select a time period after which their property may be converted to a ' By Agent' listing. ' By Owner' Sellers may choose to ' push' their listing to only Agents that specialize in selling a particular type of property within the geographic region of the property. Agents may also offer their services to ' By Owner' Sellers that have listed properties matching the Agent' s specialty. Real estate Buyers may, through a single interface, access all properties that meet the Buyers' criteria, whether listed ' By Owner' or ' By Agent.'