Swartzman runs Peerage Realty Partners, which owns several independent brokerages in the U.S. and Canada. Four of its brokerages in the U.S. Ð Briggs Freeman Sotheby’s International Realty, Jameson Sotheby’s International Realty, Four Seasons Sotheby’s International Realty and Madison & Company, collectively represent nearly $6 billion in annual sales volume.