The Prosperity Builders are a collaboration of agents who partnered together with a goal of 2x’s their business. They chose e ... Xp Realty to be the platform and support for the business brand they have created. Prosperity Builders was founded by the Foster-Vosburgh Realty Group. This amazing group of agents includes: teams, individual agents and brokerages who have chosen to grow their business and join an incredible family of like minded agents. read more