John H. "Jack" Chassaing

Diane Robben is a top attorney recognized by Best Lawyers in the practice area(s) of Health Care Law. Diane, 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 Diane is held by other top lawyers in the same geographic and legal practice area.

With a passion for protecting injury victims, Anne offers counsel to those who have been hurt due to the negligence of others. Anne has also published numerous works and presented several seminars, demonstrating her legal skill, understanding and expertise. Whether you were hurt due to a doctor’s negligence or because of a defective product, you need an advocate like Anne on your side.

Jamie Boyer is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs. Jamie, 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 Jamie is held by other top lawyers in the same geographic and legal practice area.

Mara J. Lahnar is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law. Mara J., 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 Mara J. is held by other top lawyers in the same geographic and legal practice area.

Harvard Muhm approaches his clients in a comprehensive way that transcends formulaic estate planning: Mr. Muhm is known for being independent-minded and an advocate for his clients. His knowledge of the law and experience with a wide variety of investment strategies enables him to bring his clients’ advisors together to work as a team. This multi-disciplinary approach leverages opportunities and enhances the benefits to the clients. Harvard served on the Board of Directors of Big Brothe...

Timothy Sansone is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice. Timothy, 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 Timothy is held by other top lawyers in the same geographic and legal practice area.

John Kemppainen has more than 30 years of courtroom experience defending clients in Missouri and Illinois. He is AV-rated by Martindale-Hubbell, recognized as a Missouri Super Lawyer, and has been named one of the Top Lawyers in Missouri by the St. Louis Post Dispatch . His practice includes personal injury, products liability, wrongful death, class actions, and toxic torts, with clients ranging from insurers and corporations to municipalities and individuals. He also serves as National Coord...

Lisa A. Pake is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice, Commercial Litigation, Criminal Defense: White-Collar, Insurance Law, Legal Malpractice Law - Defendants, Litigation - Insurance and Professional Malpractice Law - Defendants. Lisa A., who practices law in St. Louis, Missouri, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lisa A. is held by other top lawye...

Alex Lamb ’s desire to help others began early in life. He spent significant time at Cardinal Glennon Children’s Hospital while his father served as director of the Respiratory Care department. During those years, Alex observed the compassion and dedication of medical professionals assisting children and their families, which left a lasting impression on him. He volunteered where he could, including serving as a junior counselor at a summer camp for children with asthma. At the sa...

Leonard J. Frankel is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law Mediation and Mediation. Leonard J., who practices law in Clayton, Missouri, has been recognized since 2007. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Leonard J. is held by other top lawyers in the same geographic and legal practice area.