Of Counsel

William F. DeYoung

William F. DeYoung
Practice Areas

Aviation Litigation & Transactions


University of Illinois College of Law, J.D. (1980)

Northwestern University (1977)

Bar & Court Admissions

Illinois (1980)

U.S. Court of Appeals, Seventh Circuit (1980)

U.S. District Court, Northern District of Illinois (1980)

Arizona (1985)

U.S. District Court, District of Arizona (1985)

Trial Bar, Northern District of Illinois

As a pilot and former Navy jet mechanic, Bill DeYoung possesses intricate knowledge of aircraft and the aviation industry that gives him a leg up when litigating aviation cases.

William DeYoung is a litigator who focuses his practice in aviation, products liability and insurance coverage. He currently leads the firm's Aviation Litigation & Transactions practice group. 

Bill has extensive experience in aviation law, including the defense of airlines, aircraft operators, airframe manufacturers, and aircraft engine and component-part manufacturers in aviation disaster litigation. His most recent work included acting as lead counsel representing an avionics manufacturer in a multiple-forum aviation disaster litigation involving multiple plaintiffs and a foreign carrier.

In addition to his aviation practice, Bill also represents clients in the consumer home, medical, industrial and automotive industries in products liability matters.

While he has represented his clients in litigation throughout the United States, Bill has defended his clients against an extraordinary number of cases filed in both the Circuit Court of Cook County and the U.S. District Court for the Northern District of Illinois. He frequently tries cases in both of these courts.

Bill also has extensive experience in insurance coverage matters, including arbitrating and litigating coverage disputes on behalf of both corporate and municipal policyholders, as well as insurers, including Lloyd’s of London.

He also counsels his corporate clients on comprehensive insurance coverage programs. In addition to representing his clients in both bench and jury trials, Bill handles their state and federal appellate work as well.

Bill has chaired the Aviation section of Chuhak & Tecson's Compensation Committee and served on the Management and Litigation Committees.

Bill has been a pilot for 45 years, served aboard the U.S.S. America while in the Navy and is an ATP and CFI-MEI. He currently flies a Cessna 421B.