• 2007-2016: Partner, Pillsbury Winthrop Shaw Pittman, LLP,
   Washington, DC

• 2001-2007: Assistant Attorney General for the Tax Division of the
   United States Department of Justice, Washington, DC

• 2001: Distinguished Adjunct Professor, Tax Policy, George Mason
   University School of Law, Arlington, VA

• 2000-2001: Officer, Tax Services, Aronson & Co., Metropolitan
   Washington, DC

• 1984-1999: Assoc. Partner, Office of Federal Tax Services, Grant
   Thornton, Washington, DC

• 1984, 1985: Adjunct Professor of Law, Tax LLM Program,
   Georgetown University Law School, Washington, DC

• 1978-1983: Senior Manager, National Tax Consulting, Office of
   Federal Tax Services, Arthur Andersen LLP, Washington, DC

• 1975-1978: Corporation Tax Law Specialist, National Office, Internal
   Revenue Service, Office of Assistant Commissioner (Technical)
   (Now Part of IRS Chief Counsel), Washington, DC

• 1973-1975: Senior Tax Accountant, Ernst & Whinney (Now EY),
   Washington, DC