Mosaic Real Estate Investors’ Ethan Penner discusses his new book, “Greatness is a Choice” Geoffrey Dohrmann, chairman and CEO at Institutional Real Estate, Inc., sits down with Ethan Penner, CEO at Mosaic Real Estate Investors, to discuss Penner's new book, "Greatness is a Choice." (01/2024) To order a copy of "Greatness is a Choice," click here.