John H. Mattheessen

John H. Mattheessen concentrates his practice on commercial litigation and applies his experience across multiple practice environments to find cost-effective and innovative strategies to address complex legal issues.  Whether he is consulting with multiple stakeholders on a novel question of liability or providing prompt attention to the concerns of a small business owner, John prioritizes communication and transparency in his relationships with clients.  During law school, John was a  clerk at Fuchs & Roselli, where he gained exposure to the work of all of its practice groups. 

Prior to joining Fuchs & Roselli, John was a paralegal in Chicago-area law firms and gained experience in commercial litigation matters, including consumer fraud claims, entertainment litigation, and condominium law. John later worked in the general counsel's office of a real estate investment company with a nearly four billion dollar portfolio of open-air multi-tenant shopping centers. During that time, John gained insight into complex real estate transactions, including retail lease agreements, reciprocal easement agreements, and access agreements. He also gained an appreciation for the unique issues and considerations any general counsel confronts on a daily basis.

John received an A.A. from Illinois Central College and a B.A. in Politics and Government from Illinois State University. He later obtained a Post-Baccalaureate Paralegal Studies Certificate from Roosevelt University, where he graduated with honors. He went on to receive his J.D., cum laude, from Chicago-Kent College of Law.  In law school, John won multiple awards for academic achievement, including the CALI Award for Future Excellence, awarded to the top student in every class, for Trial Advocacy 2, Corporate Finance, Business Entity Formation & Transactions, and Critical Legal Studies.  

John is licensed to practice in Illinois.  He is a member of the Illinois State Bar Association, the DuPage County Bar Association, and the Chicago Bar Association.

At a Glance

  • Chicago-Kent College of Law, J.D., cum laude, 2019

  • Illinois State University, B.A. in Politics and Government, 2011

  • DuPage County Bar Association

  • Chicago Bar Association