Lawrence P. "Larry" Katzenstein

Eric A. Todd is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Eric A., who practices law in St. Louis, Missouri, has been recognized since 2017. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Eric A. is held by other top lawyers in the same geographic and legal practice area.

Melissa Pesce is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Melissa, who practices law in St. Louis, Missouri, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Melissa is held by other top lawyers in the same geographic and legal practice area.

Hallie Van Duren is a top attorney recognized by Best Lawyers in the practice area(s) of Collaborative Law: Family Law, Family Law and Family Law Mediation. Hallie, 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 Hallie is held by other top lawyers in the same geographic and legal practice area.

Michael Barth is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law and Medical Malpractice Law - Defendants. Michael, 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 Michael is held by other top lawyers in the same geographic and legal practice area.

John Challis is the Managing Partner at Kembell Woods & Martinsen, where he advocates for individuals and businesses in a wide range of contested matters. With a focus on fiduciary litigation and administration, John is recognized for delivering outstanding results for his clients through negotiation, mediation, and litigation. ​He counsels clients on fiduciary relationships, disputed administration, will and trust contests, and asset transfer disputes, drawing on substantial trial and ap...

Mark H. Levison is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Copyright Law. Mark H., who practices law in St. Louis, Missouri, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mark H. is held by other top lawyers in the same geographic and legal practice area.

Patrick Foppe is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Insurance and Product Liability Litigation - Defendants. Patrick, who practices law in St. Louis, Missouri, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Patrick is held by other top lawyers in the same geographic and legal practice area.

Kenneth C. Brostron is in his 44th year of trial work. He defends health care providers and attorneys in professional negligence claims. He counsels businesses and government agencies in all aspects of their operations. He is also well-known for his work in education law, as well as state and United States constitutional matters. Mr. Brostron has been chief negotiator in labor discussions and lead counsel in a wide variety of complex litigation. His clients rely on his negotiation skills incl...

John Simmons founded the firm in 1999 with seven employees and a focus on asbestos litigation. Under his leadership, the firm has expanded to more than 250 employees, including more than 80 attorneys, spread between five offices in Alton, St. Louis, New York, San Francisco and Los Angeles. John has overseen some of the biggest verdicts and settlements in the history of asbestos litigation. The firm’s first trial involved a roofer and former Shell Oil employee diagnosed with mesothelioma...

I have been handling serious injury and death cases for more than a decade. I focus exclusively on representing clients injured in tractor trailer accidents, charter bus accidents, school bus accidents, car accidents, motorcycle accidents, and other traumatic events that cause serious injury or death. Landmark Professional Achievements: I have recovered well over $20 million for injury victims. I have been honored by many lawyers and judges with Martindale-Hubbell’s AV Peer Review Ratin...