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Sean Connolly

Fax: 630-537-1773

Sean Connolly is an experienced and effective trial lawyer, providing quality representation in the areas of criminal law, overweight truck defense, and civil litigation. In 2009, Mr. Connolly assumed responsibility of his father’s firm, Stephen J. Connolly, P.C., continuing a practice marked by excellence and superb representation.

Before going into private practice, Mr. Connolly worked for five years as an Assistant State’s Attorney for the Cook County State’s Attorney’s Office, serving as a prosecutor and civil litigator. As a prosecutor, Sean prosecuted serious traffic matters such as DUI and driving on a revoked or suspended license, and felony narcotic cases. When Sean was assigned to the Civil Actions Bureau of the Cook County State’s Attorney’s Office, he represented Cook County in federal and state court, administrative agencies, and the Illinois Labor Relations Board. In 2007, Sean joined the law firm Epstein Becker & Green and worked as a commercial litigator. In 2008, Sean returned to the public sector accepting a position as a Deputy General Counsel for Administration and Support Services for the Illinois Department of Central Management Services.

In addition to his civilian law practice, Mr. Connolly is a Colonel in the United States Army Reserve Judge Advocate General’s Corps (JAG), where he currently serves as the Commander, 117th Legal Operations Detachment, Phoenix, Arizona. Sean was commissioned a Second Lieutenant in 1996 through the Reserve Officer Training Corps (R.O.T.C.) and served on active duty from 1996 - 1999. Sean left active duty to attend law school. While in law school, he joined the Army Reserve. In 2003, Sean was recalled to active duty and deployed to the Middle East. While deployed, he served in Kuwait, Iraq and Afghanistan. Sean received the Bronze Star Medal for exceptionally meritorious service during Operation Enduring Freedom and Operation Iraqi Freedom. Mr. Connolly is a graduate of the United States Army War College.

Practice Areas:

  • Overweight Truck Defense
  • Criminal Law
  • Civil Litigation
  • Corporate/Municipal Investigations
  • Real Estate


  • Northern Illinois University College of Law, J.D. 2002
  • United States Army War College, MSS, 2020
  • John Carroll University, B.A. 1996

Professional Memberships:

  • Army War College Foundation, Life Member
  • Illinois Truck Enforcement Association, Board Member