Jeffrey M. Mathis

I've been learning from the best for my entire career. I've learned that foresight, creativity and a "details matter" mentality are the keys to resolving disputes in a favorable manner. I am determined to secure the best possible outcome for our clients, so I bring those skills to the table every day. 

Practice areas

Bar Admissions

  • Illinois, 2016
  • Florida, 2017


  • John Marshall Law School, Chicago, Illinois, 2016
    • J.D., cum laude
  • University of South Florida, Tampa, Florida, 2011
    • Bachelor of Arts in Political Science, cum laude

Professional Background

  • Prior to joining the firm, Mr. Mathis clerked for the Honorable Sanjay T. Tailor of the Circuit Court of Cook County, Chancery Division.

Published Works

  • Protecting the Brave: Why Congress Should Amend the Dodd-Frank Act to Better Protect FCPA Whistleblowers, 49 J. MARSHALL L. REV. (2016).

Client testimonials

“Peter and Bill are exceptional lawyers. They are very hardworking, smart, and tenacious, always focusing on achieving the best possible result for their clients. We have co-counseled complex cases involving aviation mid-air collisions, business disputes, and matters involving insurance bad faith. In each instance, Peter and Bill exhibited superior lawyering that led to outstanding victories for our clients. You will not find better lawyers than King and Jones.” – Rd Fleck
“These guys just know how to win. Every client with a business dispute, will contest, or breach of contract case deserves lawyers who can take their case into a courtroom and prevail. Peter and Bill have decades of experience, and a unique ability to make a complex commercial case easy for a judge or jury to understand and side with them. I have personally worked in trial with Bill and Peter on behalf of a mutual client. There is no one I would trust more with a commercial case, contract dispute, or will contest than Peter King and Bill Jones.” – Paul D’Amore
“These guys have the skills and the firepower to fight the toughest battles. I have worked with them in the most difficult cases against powerful companies. The harder the case gets, the better they perform. Powerful, fearless, and meticulous. Peter King and Bill Jones are a dynamic pair that can solve complicated legal problems and give their clients personalized attention from start to finish. The best in the business for high-level business disputes.” – Tyson L.
“In my opinion, they are the best business lawyers in Chicago. I would not want to be opposing counsel against them. I have used them personally and I highly recommend them.” – Kenneth Piercey

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