[1] Durkin graduated from Chicago's Leo Catholic High School in 1964 and received a Bachelor of Arts degree from the University of Notre Dame in 1968.
[7][8][9][10][11] Durkin was selected in 2008 to be a participant in the John Adams Project, a joint effort of the American Civil Liberties Union and the National Association of Criminal Defense Lawyers to provide [12] civilian defense counsel to assist the military lawyers in the trial of the five High Value Detainees charged in U.S. v. Khalid Sheikh Mohammed, et al., in the Military Commissions at Guantanamo Bay, Cuba with conspiring to orchestrate the September 11th attacks of the World Trade Center and Pentagon.
[19] In 2009, Durkin represented Bobby DeLaughter, the former Hinds County, Mississippi, Circuit Judge in a mail fraud case pertaining to alleged judicial misconduct.
[20] In May, 2008, Durkin obtained an acquittal on all counts for Michael J. Mahoney, the former Executive Director of the John Howard Association, on charges of bribery involving health care contracts with the Illinois Department of Corrections.
[22] He also served as co-counsel for the Global Relief Foundation, Inc., of Bridgeview, Illinois, one of the Islamic charities whose assets were blocked after September 11, 2001, under provisions of the U.S. PATRIOT Act by the Treasury Department’s Office of Foreign Assets Control[23] In 2017, he was one of the lawyers who made it possible for a Syrian resident doctor at a Chicago hospital to return to Chicago after being refused re-entry to the United States following his wedding as a result of E.O.