Your parent website contains a Buyer's mini Web Portal tool that helps buyers manage their search for property.
Once a potential buyer registers as a user on your website, they can log into their own private website tool. The tool allows the buyer to collect data on property from all over the internet, cut and paste it into your tool, and then compare prices and features of each property.
Of course, you capture their user log in data and can determine the features of the property they are looking for, and then can offer them advice on properties you have listed that may meet their needs.