This book explains a revolutionary concept for a worldwide real estate matching portal (app) with a calculation of the considerable sales potential (Billion Dollar), which is integrated into a real estate agency software including real estate assessment (Trillion Dollar sales potential). This means that residential and commercial real estate, whether owner-occupied or rented, can be brokered efficiently and in a time-saving manner. It is the future of the innovative and professional real estate brokerage for all real estate agents and property owners. Real estate matching works in almost all countries and even across countries. Instead of "bringing" properties to the buyer or renter, with a real estate matching portal, potential buyers or renters can be qualified (search profile) and then matched and linked to the properties offered by the real estate agents.