Mr. Caballero recently served as the International Tax Counsel at the U.S. Department of the Treasury. While at the Treasury, he participated in the development of legislation, regulations and administrative guidance concerning international tax matters; oversaw the U.S. income tax treaty program; and coordinated the representation of the United States in various international fora, including the Organisation for Economic Co-operation and Development (OECD). He also was previously a member of the Office of International Tax Counsel for almost six years as an Attorney Advisor and Associate International Tax Counsel. Prior to his most recent position at the Treasury, Mr. Caballero practiced as a tax partner at two global law firms after serving an earlier stint at the Treasury Office of Tax Policy. PREVIOUS EXPERIENCE International Tax Counsel, Office of Tax Policy, U.S. Department of the Treasury Deputy International Tax Counsel, Office Of Tax Policy, U.S. Department of the Treasury HONORS AND RANKINGS Chambers USA Best Lawyers in America MEMBERSHIPS AND AFFILIATIONS D.C. Bar Committee on International Taxation, Chair (July 2010 to date), Vice Chair (July 2007–June 2010) D.C. Bar Association, Member Member of the Advisory Board for the BNA Tax Management’s International Journal (2008–2010) Member of the Advisory Board for the George Washington University-Internal Revenue Service Annual Institute on Current Issues in International Taxation (2010–2012) PUBLICATIONS AND SPEECHES "U.S. Income Taxation of Foreign Investment in U.S. Real Estate," BNA Tax Management Portfolio (2010), Co-Author "U.S. Tax Considerations in Structuring Acquisitions of U.S. Businesses by Foreigners," Tolley’s International Tax Planning (1996), Co-Author "The Earned Income Tax Credit: The Poverty Program That is Too Popular," 48 Tax Lawyer 435