Denis J. Conlon is Of Counsel in the Litigation Practice Group in Clark Hill's Chicago office. Denis has over 50 years of experience litigating cases and counseling clients in federal tax matters, both civil and criminal. He provides advice and representation in matters requiring detailed knowledge of Internal Revenue Service ruling, examination, appeals, litigation and other IRS procedural matters in the most difficult cases. His experience includes the IRS Industry Specialization Program, primarily exempt organizations, insurance and tax shelters.

Prior to working at Clark Hill he was of Counsel at Martin, Brown, Sullivan, Roadman, & Hartnett, Ltd., and served in the IRS Office of Chief Counsel as Regional Counsel, Midwest Region and District Counsel, Chicago Office. He was a Principal at Ernst & Young, LLP as its Director of IRS Controversy, Great Lakes Region.