Johnson + Krol Associate Attorney Karl E. Masters
Johnson + Krol Associate Attorney Karl E. Masters

Karl E. Masters


Direct: 312-757-5474

Fax: 312-255-0449



B.A., Loyola University in Chicago, cum laude

J.D., Chicago Kent-College of Law, Order of the Coif


Supreme Court of the United States


U.S. Northern District of Illinois

U.S. Central District of Illinois

U.S. Southern District of Illinois

U.S. Southern District of Indiana

Throughout his seasoned career, Karl has fiercely advocated for labor unions and their associated ERISA trust funds. Joining JK in 2017 as a vital part of the labor team, he’s brought substantial interdisciplinary experience to his clients in myriad practice areas. He’s successfully defended and prosecuted several complex matters in both federal and state courts. He’s appeared before the National Labor Relations Board, Equal Employment Opportunity Commission, and Department of Labor. He’s also tried bench and jury trials at the federal, state and agency levels, while also securing favorable results for clients in the state and federal appellate courts.

Karl has extensive experience helping union clients navigate Department of Labor audits and investigations, both criminal and civil. In addition to his litigation background, he’s also advised ERISA trustees on a wide range of matters concerning the design and administration of their plans. While Karl is an attorney with diverse skill sets, he prides himself on his proactive and hands-on approach to partnering with clients, solving their most challenging problems as a team.

Karl graduated cum laude from Loyola University in Chicago, and thereafter graduated with high honors from the Chicago-Kent College of Law in 2002 with a certificate in Labor and Employment from the Chicago-Kent Institute for Law in the Workplace. He’s also a member of the Order of the Coif national legal honor society.

Johnson + Krol Associate Attorney Karl E. Masters