Sean Lyons is an associate in White & Case's Tax Controversy group, based in Washington, DC. Sean's practice focuses on representing taxpayers in proceedings before the Internal Revenue Service, at both the examination and appeals levels. He has also represented taxpayers in both deficiency litigation before the US Tax Court and refund litigation in the US District Courts. Sean also routinely advises clients on international tax matters, with an emphasis on transfer pricing and tax treaty issues. He has represented multinational groups in connection with negotiations between the IRS and foreign tax authorities for bilateral advance pricing agreements, and regarding requests for relief from double taxation pursuant to the mutual agreement procedures of bilateral income tax treaties.
Sean received his BA, with distinction, from the University of Virginia College of Arts and Sciences, and his JD from the University of Virginia School of Law. Sean is admitted to practice before the US Tax Court and the US District Courts for the District of Columbia and the Western District of Texas.
Bars and Courts
District of Columbia Bar
Pennsylvania State Bar
US Tax Court
US District Court for the District of Columbia
US District Court for the Western District of Texas