Michael A. Mattingly

Of Counsel

Local businesses and individuals in Grundy County have been benefiting from Mr. Mattingly’s sound legal guidance for many years.  He focuses particularly on agricultural businesses, but provides assistance to all types of businesses – initially in forming and registering the most appropriate legal entity and then in providing legal advice to operating businesses.   He also assists individuals with estate planning and estate and trust administration.  He provides guidance regarding tax issues to both his corporate and individual clients.

Mr. Mattingly is actively involved in multiple bar associations, and is a long-time member and leader in the Agricultural Law Section Council of the Illinois Bar Association.  He has presented cases in both federal and state courts and has argued several matters before the Illinois Appellate Court.

Mr. Mattingly also serves many local business, civic, and philanthropic organizations, volunteering in many different capacities over the years.  He is passionate about serving his clients and serving his community.

Bar Admissions

  • Illinois, 1987
  • U.S. District Court, Northern District of Illinois, 1987


  • Loyola University of Chicago, Chicago, Illinois
    • J.D. – 1987
  • Illinois State University, Normal, Illinois
    • M.S. – 1984
  • Illinois State University, Normal, Illinois
    • B.S. – 1982

Professional Associations and Memberships

  • Illinois State Bar Association
    • Agricultural Law Section Council (2007-present), officer positions 2012-2015
  • Grundy County Bar Association, former President & Secretary
  • Will County Bar Association

Civic and Philanthropic Organizations

  • Abraham Lincoln Association
  • I & M Canal Corridor Association
  • Illinois Sheriff’s Association
  • Community Foundation of Grundy County
  • Pheasants Forever (wildlife conservation organization)
  • Grundy County Chamber of Commerce and Industry
    • Former Chairman, Vice Chairman and Board Member
  • City of Morris/County of Grundy Riverfront Commission
    • Former Chairman and Board Member, 1989 to 2006
  • Grundy County United Fund
    • Former Chairman, Fund Drive Chairman and Board Member
  • Morris Downtown Development Partnership
    • Former Founding Board Member
  • Kankakee, Livingston and Grundy County Workforce Investment Board
    • Former Board Member, 2000-2008
  • Grundy County Youth Council
    • Former Board Member, 2000-2006
  • Minooka Lions Club Member, 1993 to present
    • President, 2009
    • Melvin Jones Award Recipient 2013
    • Lion of the year Recipient 2014
    • Board Member 2008 to present
  • Morris Community High School Futures Committee, 2006
  • Grundy County Republican Central Committee
    • Central Committee Member 2008 to 2022
    • Chairman of the Grundy County Republican Central Committee April 2012 to 2016
    • Elected Precinct Committee Person 2010 to 2022 Saratoga #3 Precinct
  • Grundy County Community Foundation Board Member 2016 to present
  • Grundy County Board Ethics  Review Committee Member  (2020 to 2024)

111 N. Ottawa Street, Joliet, IL 60432
Phone: 815-727-4511        Fax: 815-727-1586

2100 Manchester Rd., Building B, Suite 906, Wheaton, IL 60187
Phone: 630-547-2590        Fax: 815-727-1586

220 W. Main Street, Suite 302, Morris, IL 60540
Phone: 815-942-1881        Fax: 815-942-6444

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