Rex represents employers throughout the United States in all facets of labor and employment law. He is widely recognized in the field of wage and hour litigation, and has represented clients in numerous class action and collective action lawsuits. He defends employers against discrimination claims in Federal and State courts and before administrative agencies.

Rex represents employers before the NLRB in representation matters and unfair labor practice charges. He also assists clients with investigations and audits before the U.S. Department of Labor. Rex also routines advises governmental entities, non-profit and charitable organizations on a variety of legal compliance matters.

Rex is a sought-after speaker on many employment topics. His presentations include wage-and-hour compliance, employee leave issues, garnishments, and a variety of labor and employment legal updates.

Prior to joining McMahon Berger, an employment and labor law firm based in St. Louis, Missouri, Rex served for six years as Assistant Attorney General for the State of Missouri.