PROFESSIONALS

Monica T. Sullivan

Managing Partner
blank image Monica T. Sullivan
10 South Wacker Drive
36th Floor
Chicago, IL 60606, US

T: 312.585.1460 F: 312.585.1401
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BIOGRAPHY
As managing partner and chair of the Executive Committee, Monica oversees the firm’s operations and strategic direction. In addition to her leadership role, she maintains an active insurance coverage practice focused on litigation and arbitration, advising an international client base on a broad range of matters, including pharmaceutical, environmental, construction, and product liability claims.
Monica’s diverse experience includes counseling clients on claims administration and policy analysis, as well as representing them in complex disputes involving commercial general liability, commercial litigation, risk management, managed care and healthcare, and professional liability.

She also brings extensive experience to the Bermuda market, having served as U.S. claims counsel to Bermuda insurers for over 30 years. In this capacity, she has managed arbitrations both domestically and internationally.

Beyond her litigation and coverage work, Monica regularly leads lectures and training seminars for claims and underwriting professionals, focusing on emerging insurance coverage issues, jurisdictional considerations, and best practices in claims handling.
Simply put, our clients come first. We love untangling a complex coverage case and securing a successful result, whether through litigation, arbitration or negotiation. Our hard working team has a proven track record of favorable results.

Memberships

  • American Bar Association
  • American College of Coverage Counsel 
  • Chicago Bar Association
  • Defense Research Institute
  • Professional Liability Underwriting Society

Awards & Rankings

  • Legal 500 Chicago Elite: Insurance Litigation, 2026
  • Chambers USA, Insurance: Dispute Resolution: Insurer, 2020-2026
  • Illinois Super Lawyers, 2019-2026
  • Best Lawyers®, The Best Lawyers in America®, 2019-2027
  • Best Lawyers®, Lawyer of the Year, 2023 and 2027
  • Crain's Chicago Business, Crain's Notable Women in Law, 2024
  • Best Lawyers®, Business Edition of Women in the Law, 2022

Before Nicolaides

Monica was a partner in another Chicago-based coverage firm for 15 years. Before that, she worked as an associate at Tressler, Soderstrom, Maloney & Priess and then Bates, Meckler, Bulger & Tilson, focusing on insurance coverage and general commercial litigation.