He is also the uncle of David Joseph Maxham III, who is on the Board of Directors of the Centurion at Rutgers, Inc. He is also the uncle of Michael Maxham who is an actor and singer. Since May 2002, Mr. Leo has been a member of the Sovereign Military Order of Malta. He lives in Arlington, Va with his wife and 6 children.
In July 2013, Leo was identified as a key member of Groundswell, a secretive coalition of right wing activists and journalists attempting to make radical political change behind the scenes.