Timothy M. Tierney

Don O’Keefe has over 25 years of experience as a trial lawyer. In all, he has tried more than 100 cases to verdict in state and federal courts in Missouri and Illinois and arbitrations before the American Arbitration Association and United States Arbitration and Mediation. Don has argued before appellate courts in both Missouri and Illinois and has been before the Missouri Supreme Court on multiple cases. Don is a member of many prominent legal and state bar organizations including the ...

Kevin M. Kercher is a top attorney recognized by Best Lawyers in the practice area(s) of Patent Law. Kevin M., who practices law in St. Louis, Missouri, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kevin M. is held by other top lawyers in the same geographic and legal practice area.

William M. Lawson is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management, Labor Law - Management and Litigation - Labor and Employment. William M., who practices law in St. Louis, Missouri, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which William M. is held by other top lawyers in the same geographic and legal practice area.

Theodore J. MacDonald, Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Bet-the-Company Litigation, Commercial Litigation, Criminal Defense: White-Collar and Personal Injury Litigation - Defendants. Theodore J., who practices law in St. Louis, Missouri, has been recognized since 2007. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Theodore J. is held by other top lawyers in the same geographic and legal practice area.

Carolyn Geoghegan provides attentive, collaborative representation, keeping clients informed and involved throughout every stage of litigation. She focuses on defending complex liability and medical claims, as well as advising insurers on coverage disputes, policy interpretation, and exclusions. Learn more about Carolyn’s practice here .

Chandler D. Atkins is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Defendants. Chandler D., who practices law in St. Louis, Missouri, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Chandler D. is held by other top lawyers in the same geographic and legal practice area.

Trevor A. Sondag is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Defendants and Product Liability Litigation - Defendants. Trevor A., who practices law in Belleville, Illinois, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Trevor A. is held by other top lawyers in the same geographic and legal practice area.

Jessica L. Liss is the office managing principal of the St. Louis and Kansas City, Missouri, and Overland Park, Kansas, offices of Jackson Lewis, P.C. Based in St. Louis her entire career, Jessica is a seasoned trial attorney with extensive experience litigating all forms of employment matters throughout the Midwest, in federal courts, state courts, and before administrative agencies, arbitrators and mediators. Jessica is a trusted advisor providing ongoing legal support and counsel on a dail...

Tom Clark serves as the firm's Chief Operating Officer and leads the firm’s St. Louis office. His expertise encompasses all aspects of employee benefits programs, including the design, implementation and compliance of retirement plans, health and welfare plans, and executive and incentive compensation arrangements. He also has a robust practice assisting covered service providers in meeting their ERISA compliance needs. Mr. Clark’s vast litigation experience complements the firm&r...

Ronald K. Fisher is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management, Labor Law - Management and Litigation - Labor and Employment. Ronald K., who practices law in Chesterfield, Missouri, has been recognized since 1989. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ronald K. is held by other top lawyers in the same geographic and legal practice area.