Daniel Hasenstab

For the past 19 years, Mr. Harrison has devoted his practice exclusively to the representation of companies in the area of labor and employment law. Mr. Harrison’s practice includes counseling and advising clients on employment-related matters such as work related investigations, leave and attendance issues, and disciplinary and termination decisions. He has litigated labor and employment-related matters in federal and state courts throughout the United States, including individual and ...

Adina Johnson is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice and Insurance Law. Adina, who practices law in Clayton, Missouri, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Adina is held by other top lawyers in the same geographic and legal practice area.

John Barnerd is a Partner at Simmons Hanly Conroy. He joined the firm in 2002 as mesothelioma and asbestos attorney, and today is a member of the firm’s management committee. He previously served for two years as an Assistant State’s Attorney for Madison County, Ill. John earned his bachelor’s degree in accounting from Illinois College and graduated with his J.D. from Saint Louis University School of Law. In 2010, Chicago Lawyers Magazine recognized him as a top 40 Under 40 ...

Mr. Cohen concentrates his practice in the areas of commercial litigation, real estate, domestic relations, general business representation, and employment law. Mr. Cohen handles a variety of litigation matters in both federal and state court, as well as in administrative hearings and mediation and arbitration proceedings. He has tried numerous jury and non-jury cases. His litigation practice involves the ongoing representation of business clients, as well as individuals. Mr. Cohen’s li...

Jennifer R. Piper is a St. Louis family law attorney with over 25 years of experience exclusively handling family law matters, recognized nationally and locally as one of the region’s premier practitioners. She is consistently named to The Best Lawyers in America® in the practice area of Family Law (2017–2025), to Missouri Super Lawyers (2021–2025), and she holds a Martindale-Hubbell AV Preeminent Rating — the highest peer-review rating available. Ms. Piper earned ...

Brent A. Sumner is the Managing Partner at Sumner Law Group, LLC. He focuses his practice exclusively on cases that involve serious personal injuries. Over the years, he has successfully represented thousands of individuals and families, recovering millions of dollars in compensation for injured accident victims. As an experienced litigator, Brent stresses how important it is to have an attorney who is prepared to go to trial in a serious personal injury case. Insurance companies need to know...

Kevin Carnie Jr. has earned a reputation for taking on some of the most high-profile cases in the region, securing nearly half a billion dollars in verdicts and settlements for his clients. Carnie focuses on catastrophic personal injury and product liability cases. His product liability cases range from accidents involving cranes, vehicles, construction equipment, heavy machinery, factory equipment, and medical devices. His personal injury practice includes medical malpractice, auto accidents...

Tom Clark serves as the firm's Chief Operating Officer and leads the firm’s St. Louis office. His expertise encompasses all aspects of employee benefits programs, including the design, implementation and compliance of retirement plans, health and welfare plans, and executive and incentive compensation arrangements. He also has a robust practice assisting covered service providers in meeting their ERISA compliance needs. Mr. Clark’s vast litigation experience complements the firm&r...

Andrew Blackwell is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Andrew, 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 Andrew is held by other top lawyers in the same geographic and legal practice area.

Don O’Keefe has over 25 years of experience as a trial lawyer. In all, he has tried more than 100 cases to verdict in state and federal courts in Missouri and Illinois and arbitrations before the American Arbitration Association and United States Arbitration and Mediation. Don has argued before appellate courts in both Missouri and Illinois and has been before the Missouri Supreme Court on multiple cases. Don is a member of many prominent legal and state bar organizations including the ...