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Jehan deFonseka specializes in leading teams in complex business litigation. His areas of focus include tax and transfer pricing disputes, valuations, data analytics, and securities-related matters. He has worked with both plaintiffs and defendants, and has supported expert witnesses and assisted attorneys for various corporations and government agencies.

Mr. deFonseka has played critical roles on a variety of cases, including financial crisis litigation (Starr v US), transfer pricing disputes (Eaton Corp v Commissioner), and debt-equity characterization (In re U.S. Steel Canada, Inc.). Other experiences includes modeling hedging strategies, performing due diligence on trading firms, and evaluating technologies for intellectual property disputes.

Mr. deFonseka previously worked at UBS Investment Bank as a Hedge Fund Risk Analyst. He received his MBA from Harvard Business School, where he also served as Editor-in-Chief of the Harvard Business School newspaper.

March 13, 2017
Michael I. Cragg, Jehan deFonseka, Lawrence Powell, and Bin Zhou
Published in Tax Notes, Volume 154, Number 11

This report finds that newly-proposed tax legislation aiming to defer the recognition of affiliated offshore reinsurance for U.S. tax purposes will negatively impact businesses and consumers in the United States.

February 27, 2017
Michael I. Cragg, Jehan deFonseka, Bin Zhou, and Lawrence Powell

This is an excerpt from the report titled “The Impact of Offshore Affiliate Reinsurance Tax Proposals on the U.S. Insurance Market,” originally published on January 23, 2017. This excerpt is focused the economic impact of the border adjustment provision contained in the Republican’s Blueprint tax reform proposal.

Corporate Inversion Transactions: Valuation Considerations
August 3, 2015
Evan Cohen, Michael I. Cragg, Jehan deFonseka, and Ryan Tholanikunnel
Published in Tax Notes
Statistical review of U.S. macronutrient consumption data, 1965-2011: Americans have been following dietary guidelines, coincident with the rise in obesity
May 2015
Evan Cohen, Michael I. Cragg, Bin Zhou, Jehan deFonseka, Melanie Rosenberg, and Adele Hite
Published in the Nutrition journal
The European Debt Crisis and the Role of the European Central Bank
Published by The Brattle Group, Inc.
Cleaning Up Spark Spreads: How Plant Owners Can Reduce Risk Through Carbon Markets
March 2011
Published by The Brattle Group, Inc.
Understanding the Credit Crisis Part 2: Getting Down the Mountain
Published by The Brattle Group, Inc.