Donald J. Cosley has practiced law since 1994 and is admitted to practice in Illinois, the U.S. District Court Northern District of Illinois, and the U.S. Supreme Court. Donald Cosley assisted many clients in divorce and related family law, criminal defense, DUI, traffic violations, and drivers' license reinstatements. He prides himself on his firm's ability to provide aggressive and personable service to clients from all walks of life. Mr. Cosley belongs to several professional associations. He is a member of the Chicago Bar Association, the Illinois State Bar Association, and the National Association of Criminal Defense Lawyers. Mr. Cosley is extremely active as a member of the Northwest Suburban Bar Association and has been part of the organization's Board of Governors, Foundation Board, and has served as Parliamentarian. He has also served as Chairperson on several committees, including the Holiday Party Committee, the Judges Night Committee, and the Committee responsible for the group's Supreme Court Trip. Mr. Cosley also served as Chairperson for the Attorney Referral Service.