Michael F. McMahon

Michael F. McMahon: Attorney with McMahon Law Offices
  • Member at McMahon Law Offices (2 Attorneys)
  • 18W140 Butterfield Road, Suite 1500, Oakbrook Terrace, IL 60181
    View Michael F. McMahon's office location
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    • #4 in weekly profile views out of 126 Attorneys in Oakbrook Terrace, IL
    • #47,604 in weekly profile views out of 1,824,485 total attorneys Overall


Founding Attorney Michael F. McMahon is a former DuPage County Assistant State's Attorney with over 25 years of legal experience. He assists clients throughout Cook, DuPage, Kane Will, and surrounding Counties with matters relating to felony and misdemeanor criminal law, including, but not limited to drug charges, DUI defense, Theft and other property crimes, sex crimes, traffic crimes, violent crimes, weapons charges, and more.

Mr. McMahon earned his law degree from Chicago-Kent College of Law, Juris Doctor with honors in 1993 and a B.A. in Political Science from Loyola University of Chicago, Magna Cum Laude. He maintains active memberships in local and state organizations including the DuPage County Bar Association, the DuPage County Children's Advocacy Center, and the DuPage County Republican Organization. Michael was Legal counsel to the Senate President and Legal counsel to the Senate Judiciary Committee. He was appointed by the Governor as Commissioner of the Illinois Liquor control commission. Michael was elected and endorsed by the State’s Attorney, to the DuPage County Board and served 12 years. He has been a DuPage County Prosecutor and currently the Village of Downers Grove Prosecutor, handling all of their DUI cases.

Michael F. McMahon has been honored by The National Trial Lawyers as a "Top 100" trial attorney, known for his thousands of cases that went to trial and won!


- The National Trial Lawyers, Top 100


- DuPage County Assistant State's Attorney

- Illinois Liquor Control Commissioner

- DuPage County Board Member/District 3

- Illinois Senate, Legal Counsel to Senate President


- DuPage County Bar Association

- DuPage County Children's Advocacy Center

- Irish Fellowship Club, Board of Directors

- DuPage County Republican Organization

Areas of Practice (8)

  • Criminal Law
  • DUI Deffense
  • Traffic Violations
  • Drug Charges
  • Violent Crimes
  • Property Crimes
  • Weapons Charges
  • Expungements

Education & Credentials

Contact Information:
630-468-0201  Phone
(630) 953-4400  Phone
University Attended:
Loyola University of Chicago, B.A., Political Science (Philosophy Minor), magna cum laude, 1990
Law School Attended:
Illinois Institute of Technology, Chicago-Kent College of Law, J.D., with honors, 1993
Year of First Admission:
1993, Illinois
Payment Information:
  • Free Initial Consultation

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Oakbrook Terrace, Illinois

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