Ryan talks about becoming one of the most influential people in the real estate game, creating content, and his new book, Big Money Energy. Ryan Serhant is a real estate broker, CEO, and founder of SERHANT., a vertically-integrated mega brokerage comprising an in-house film studio, education arm, marketing division, and technology platform. He's also a bestselling author, producer, and star of Bravo's Million Dollar Listing New York and Sell It Like Serhant.