David P. Dorner Photo
David is a member of the firm’s State Tax Group whose primary practice includes tax controversy, including federal and state tax audits, appeals, Illinois Independent Tax Tribunal disputes, administrative hearings, conciliation and mediation conferences and judicial litigation at all levels throughout the United States.


  • John Marshall Law School, 1996, J.D.
  • University of Illinois, 1993, B.S.

  • Illinois

  • U.S. Tax Court
  • U.S. District Court - Northern District of Illinois

Awards & Recognition

  • Selected by Tax Law Experts as their 2018 "Recommended Tax Lawyer - USA: Illinois"

Notable Quotes

  • 27 January 2021 “Chicago Establishes Streaming Tax Safe Harbor” Tax Notes
  • March/April 2020 “Aircraft Intercompany Leasing: Domestic Use Tax and International Tax Considerations”, Journal of Multistate Taxation and Incentives, Volume 30, Number 1 
  • 16 July 2019 “5 State and Local Tax Regs To Watch In The 2nd Half Of 2019,” Law360