Mary Kay McCalla Martire focuses her practice on state and local tax disputes. She helps clients with audits, tax-related litigation, letter rulings and settlement conferences. Mary Kay has experience resolving disputes involving income, sales and use, utility and telecommunications taxes, as well as premium and retaliatory tax.

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  • Won two appellate court rulings affirming the dismissal of qui tam lawsuits (State ex rel. Beeler, Schad & Diamond, P.C. v. Burlington Coat Factory Warehouse corp., 369 Ill. App. 3d 567 (1st Dist. 2006); People ex rel. Schad Diamond & Sheddon, P.C. v. QVC, Inc., 2015 IL App (1st) 13299 (April 21, 2015)) and obtained circuit court orders dismissing several other qui tam cases
  • Won an administrative hearing proceeding before the Illinois Department of Revenue in 2014 regarding an automobile dealer’s use tax obligations on its inventory of loaner cars
  • Won a trial verdict for a client in 2013 involving the Illinois manufacturing equipment and hand-held tool exemptions from use tax
  • Obtained the dismissal of a federal court lawsuit seeking a refund of gas use and revenue tax from a public utility in 2011

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  • Martindale-Hubbell, AV Preeminent
  • Illinois Super Lawyer 2005 to 2011
  • Women in Tax Leaders, International Tax Review 2017


  • Chicago Bar Association, State and Local Tax Committee, past chair
  • Chicago Lawyers Committee for Civil Rights Under Law, Inc., past chair
  • River Forest School District 90 Parents Instrumental Music Association, past chair


University of Michigan Law School, JD, 1985
Michigan State University, BA, 1982


US Court of Appeals for the Sixth Circuit
US Court of Appeals for the Seventh Circuit

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