Karl E. Masters


Contact Information

Direct: (312)-757-5474

Office: (312)-372-8587

Fax: (312)-255-0449

Email: masters@johnsonkrol.com



Karl joined Johnson & Krol in 2017 as part of both the Labor and ERISA Department, and has been an advocate exclusively for Labor Unions and their associated ERISA Trust Funds his entire career.  He has successfully defended and prosecuted several complex matters in the Federal and State Courts, and before the National Labor Relations Board, Equal Employment Opportunity Commission, and Department of Labor.  He has tried bench and jury trials at the Federal, State, and Agency levels.  He has also secured 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, Mr. Masters also advised ERISA trustees on a wide range of matters concerning the design and administration of their plans.


Mr. Masters is a seasoned yet practical attorney who works with clients to solve their most challenging problems.  He brings substantial experience in both Labor and ERISA matters, and believes his interdisciplinary experience is an asset to clients in both practice areas.  He 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 is a member of the Order of the Coif national legal honors society.


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

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


  • United States Supreme Court

  • Illinois

  • U.S. Northern District of Illinois

  • U.S. Central District of Illinois

  • U.S. Southern District of Illinois

  • U.S. Southern District of Indiana

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