Director , Health and Human Rights Initiative, O'Neill Institute for National and Global Health Law ; Director, Global Center for Legal Innovation on Food Environments, O'Neill Institute for National and Global Health Law ; Visiting Professor of Law

Adjunct Professor of Law; Lead Counsel, Insurance and Corporate Tax, MassMutual Life Insurance Company

Associate Director, Hepatitis Policy Project, O’Neill Institute for National and Global Health Law – Georgetown University Law Center; Adjunct Professor of Law

Managing Director , National Tax Department, Ernst & Young LLP; Adjunct Professor of Law

Partner, Arent Fox; Adjunct Professor of Law

Associate General Counsel, Defense Intelligence Agency; Adjunct Professor of Law

Managing Director, Three Crowns; Adjunct Professor of Law

Principal, National Tax Department in Federal Tax Services, Ernst & Young; Adjunct Professor

Senior Counsel, Caplin & Drysdale; Adjunct Professor of Law

Partner, Vinson & Elkins LLP