Halle L. Dimar

Portia C. Kayser is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Municipal. Portia C., who practices law in Chesterfield, Missouri, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Portia C. is held by other top lawyers in the same geographic and legal practice area.

Ian Cooper serves clients in employment, higher education, commercial, and tort matters. Ian regularly serves as lead counsel in significant cases, including class actions and other complex litigation and has tried numerous jury and bench trials in Missouri and Illinois. He has argued cases before the Missouri Supreme Court, the Illinois Supreme Court, the Missouri and Illinois Courts of Appeal, and the United States Courts of Appeal for the Seventh and Eighth Circuits and has briefed importa...

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.

William S. Thomas is one of the firm’s many experienced trial lawyers. His practice is diverse, with an emphasis in complex litigation. He has tried cases in a number of difficult venues, from the City of St. Louis, Missouri, to Madison and St. Clair Counties, in Illinois, and Federal Court in East St. Louis and St. Louis. He was lead trial counsel in one of the longest civil jury trials in St. Louis County history, which lasted 100 trial days. In addition to his trial practice, Bill is...

Katherine E. Henry is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Katherine E., 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 Katherine E. is held by other top lawyers in the same geographic and legal practice area.

Benjamin W. Powell is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Defendants and Product Liability Litigation - Defendants. Benjamin W., who practices law in Edwardsville, Illinois, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Benjamin W. is held by other top lawyers in the same geographic and legal practice area.

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.

A Fuller Glaser is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. A Fuller, 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 A Fuller is held by other top lawyers in the same geographic and legal practice area.

Adam D. Hirtz is a principal and the office litigation manager in the St. Louis, Missouri, office of Jackson Lewis P.C. He prides himself on being a responsive, strategic and creative advocate and counselor for the firm’s clients. Adam has more than 25 years of experience as a trial attorney representing businesses in employment litigation in both state and federal courts throughout the country. He also acts as a mediator, including regularly mediating cases for the Equal Employment Opp...

John S. Sandberg is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Litigation - Construction, Litigation - Real Estate, Personal Injury Litigation - Defendants and Product Liability Litigation - Defendants. John S., who practices law in St. Louis, Missouri, has been recognized since 2005. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John S. is held by other top lawyers in the same geographic and...