Warren is a member of the National Association of Realtors, The New York State Association of Realtors, The Sullivan County Board of Realtors and The Sullivan County MLS. He has proudly served as a director of The Sullivan County Board Of Realtors for the past seven years. He has served as President in 2012 and 2015 and as Chairman of the Board in 2013 and 2016. He has also served for seven years as a member of the Planning Board, Town of Delaware.