Matthew S. "Matt" Layfield

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...

Stephanie O. Zorn is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Stephanie O., 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 Stephanie O. is held by other top lawyers in the same geographic and legal practice area.

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...

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

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

David G. Wasinger is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law and Commercial Litigation. David G., who practices law in St. Louis, Missouri, has been recognized since 2006. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David G. is held by other top lawyers in the same geographic and legal practice area.

John R. Fenley was named a partner in 2019. He practices in the areas of family law and criminal defense. He received his bachelor’s degree in communication and political science from DePauw University and his law degree from Saint Louis University. While in law school, Mr. Fenley served as a staff member and editor for the Saint Louis University Law Journal. He also interned with the St. Louis County Prosecuting Attorney’s office before joining Reinker, Hamilton & Piper, LLC....

A. Courtney Cox is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. A. Courtney, who practices law in Edwardsville, Illinois, has been recognized since 2015. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which A. Courtney is held by other top lawyers in the same geographic and legal practice area.

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

In her over 30 years of practice, Alisse Camazine has become one of the leading family law practitioners in the St. Louis area, focusing on child custody and complex divorce and property litigation. She has been listed in Naifeh and Smith’s, The Best Lawyers in America, for Family Law, since 1993. She became a Fellow of the American Academy of Matrimonial Lawyers in 1988 and has been certified as an arbitrator by the Academy. She received the Women’s Justice Award for Trial Practi...