Brent Sumner

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.

Jim Layton joined the firm in 2017 after serving more than 22 years in the Missouri Attorney General’s Office—nearly all of those as the State’s principal civil appellate lawyer, Solicitor General. Jim practices in both appellate and trial courts, particularly in matters involving complex legal questions, including those arising under the U.S. and Missouri constitutions, Missouri school funding and other education statutes, discrimination laws, and Missouri tax laws. He repr...

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.

Richard Elias is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Plaintiffs and Personal Injury Litigation - Plaintiffs. Richard, 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 Richard is held by other top lawyers in the same geographic and legal practice area.

Mollie G. Mohan practices primarily in the areas of labor & employment and higher education with an emphasis on litigation and appeals. Mollie represents colleges, universities, and private employers in labor and employment matters at the administrative, trial, and appellate level. Prior to joining the firm, Mollie worked at a large-sized litigation firm in Saint Louis. While in law school, Mollie was a student law clerk to the Honorable Jean C. Hamilton of the United States District Cour...

Randy Weber’s practice at Hamilton Weber firm concentrates on general corporate, state and local government, and commercial and public finance law matters. His corporate practice has included serving as outside general counsel for a number of corporations, with significant experience addressing employment law issues, as well as corporate formation and organizational matters involving general business and closely held corporations and including all forms of partnership and limited liabil...

Irene J. Marusic is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law, Litigation - Insurance, Personal Injury Litigation - Defendants and Product Liability Litigation - Defendants. Irene J., 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 Irene J. is held by other top lawyers in the same geographic and legal practice area.

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.

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...

Richard D. Watters advises all types of health care clients from large hospital systems to individual physicians, nurses and other health care professionals on various matters including general health care laws and regulations, business operations, contracting, governance and corporate issues, licensing/regulatory compliance, the Stark Law, fraud and abuse, EMTALA, Certificates of Need, medical staff issues, practice and business acquisitions, joint ventures, Medicare and Medicaid conditions ...