Kathleen D. Mathewson draws on an exceptional depth of experience to counsel Schiff Hardin attorneys on sensitive professional responsibility and liability issues. She helps attorneys identify and resolve business and ethical conflict issues and communicate with clients about such matters. Kathleen regularly counsels attorneys on the application and interpretation of relevant Rules of Professional Conduct in various jurisdictions.  

Kathleen is a member of the firm’s Professional Practice Committee and works closely with the Firm’s General Counsel.  She is also a certified public accountant.

  • Experience

    Before joining Schiff Hardin, Kathleen served as professional responsibility counsel for a large firm with offices throughout the country. There, she directly defended or worked with independent counsel in defending all professional liability and disciplinary complaints against the firm and its attorneys. She was responsible for regularly reporting such matters to the firm’s professional liability insurer and apprising them of significant developments.

    Kathleen previously litigated commercial cases in federal and state courts for both an international law firm and large litigation firm. She has successfully represented numerous attorneys, accountants, directors, officers and physicians in professional liability cases and handled a variety of insurance coverage, FDIC, unfair competition, product liability, RICO, intellectual property, contract, employment, bankruptcy, construction, premises liability and real estate disputes. 

    Kathleen has worked on numerous appeals in both state and federal courts.

  • Credentials


    • Loyola University Chicago School of Law, J.D., 1985
    • DePaul University, M.S., Taxation, 1985
    • DePaul University, B.S., Commerce, 1981, with honors

    Bar Admissions

    • Illinois
      • U.S. District Court for the Northern District of Illinois

          Professional Certifications

          • Certified Public Accountant (Illinois, 1982)

          Teaching Appointments

          Ms. Mathewson has taught college introductory, intermediate and cost accounting.