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McDermott Will & Emery LLP

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Roger Jones

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McDermott Will & Emery LLP

Work Department

US & International Tax


Roger is a senior counsel. He represents clients in tax controversy and litigation matters at all levels of the federal court system, before the Internal Revenue Service (IRS), and before various state courts and tax agencies. He has represented taxpayers, including numerous Fortune 500 companies, in more than 80 docketed cases before the US Supreme Court, most of the US courts of appeals, federal district courts, the US Court of Federal Claims and the US Tax Court.

Roger has also successfully settled numerous tax disputes short of litigation through administrative appeals procedures, mediation and other alternative dispute resolution processes. In addition, he advises clients on issues related to federal and state tax planning, compliance and transactional work, with particular emphasis on transfer pricing, Subpart F, foreign tax credits, financial instruments, reorganizations and other corporate transactions. Roger is also the author of numerous articles discussing a wide variety of tax-related topics.

Core Capabilities: Acquisitions & Restructurings, Country-by-Country Reporting, Federal Taxation, Tax, Tax Controversies, Transfer Pricing.


American Bar Association, Tax Section
Illinois State Bar Association, Tax Section
New York State Bar Association, Tax Section
Friends for Therapeutic Equine Activities
Bar Admissions: Illinois and New York
Courts: United States Supreme Court; United States Court of Appeals - Second, Fourth, Fifth, Sixth, Seventh, Eighth, Ninth, Tenth, Eleventh, District of Columbia and Federal Circuits; United States District Courts - Northern District of Illinois, District of Colorado; United States Court of Federal Claims; United States Tax Court.


State University of New York - Buffalo Law School, JD, magna cum laude, 1984
State University of New York - Buffalo, PhD, 1979
State University of New York - Buffalo, MA, 1976
State University of New York - Buffalo, BA, cum laude, 1973

United States: Tax

US taxes: contentious

Within: US taxes: contentious

The 'very knowledgeable' team at McDermott Will & Emery LLP assists clients with tax controversies, administrative appeals and tax litigation. Dallas-based Mark Thomas and Laura Gavioli were involved in representing several high-profile parties, including former Brazil central bank president Arminio Fraga, in a case against the IRS for alleged improper capital gains treatment afforded to Fraga's hedge fund and private equity company, Gávea Investimentos. Another major highlight for the team was a complete victory in the US Tax Court case Illinois Tool Works Inc. & Subsidiaries, v. Commissioner of Internal Revenue, led by Caroline Ngo out of Washington DC. Chicago counsel Roger Jones is well respected, and Jane May and  Mark Yopp are also notable. The firm welcomed Charles Moll and Troy Van Dongen into the firm’s San Francisco office and counsel Marcy Jo Mandel into its Los Angeles office in August 2018; the trio joined from Winston & Strawn LLP. The group also added Steven Hadjilogiou and two associates to its Miami office in March 2018; they joined from Baker McKenzie LLP. Departures included Robin Greenhouse to the IRS as a division counsel in June 2018; Dallas partner Kristina Novak to the IRS as an associate chief counsel in August 2018; Madeline Chiampou to S&P Global in September 2018; and Gale Chan to PwC in August 2018. Todd Welty left for an in-house role in 2019.

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