• Represents consumers, investors, companies, and injuried individuals in contingency fee individual, class, collective and mass tort cases • Has obtained well over $1 billion in recoveries for thousands of clients • Harvard Law School, J.D., magna cum laude (1988)• Oxford University, Ph.D. in Modern History (1985)• Marshall Scholar (1985)• Princeton University, A.B., summa cum laude (1983)• National Association of Consumer Advocates’ Attorney of the Year (2005)• Lead Counsel in various MDL litigations, including MDL-1346 (Amazon-Alexa Privacy), MDL-1352(Doubleclick Internet), MDL-1739 (In re Grand Theft Auto Video Game), MDL-2025 (In re Staples, Inc. Wage & Hour Employment Practices), MDL-1708 (In re Guidant Implantable Heart Devices)• Referring to Mr. Lesser, "class counsel’s performance in this case has been exemplary.” Wilson v. Gloucester County, 06-cv-1368 (Judge Irenas, District of New Jersey, March 18, 2010) • Appointed Settlement Subclass Counsel in In re Flint Water Cases, No. 16-10444 (Eastern District of Michigan, Aug. 16, 2019)• Elected member to American Law Institute (2008)• Co-Chair of the Board of Directors National Association of Consumer Advocates (2008- 2013)• Representative, American Council on Consumer Interests to the United Nations (1995-1997)• Board Member, Public Justice (since 2017)• Admitted to the New York, New Jersey, and District of Columbia Bars, United States Supreme Court, 10 federal courts of appeal, and 11 federal district courts• Member, New York City Bar Association’s Committee on Consumer Affairs (1995-1998) • Member, Federal Bar Council’s Second Circuit Courts Committee (since 2006)• Chair, National Association of Securities and Consumer Attorneys’ Consumer Committee (2003 to 2005)• Drafted revisions to New York’s class action law (Report, 2003)• Contributor, Federal Bar Council, Courthouses of the Second Circuit (2015) • Author, “An Attorney’s Reaction to Professor Kolodinsky’s Observations,” 44(3) The Journal of Consumer Affairs (Fall 2010); • Contributor, Consumer Class Actions, 5th through 8th Ed’s. (2002-to date) (Contributor & Ed.) (National Consumer Law Center)• Author, “Time price differentials in the rent-to-own industry: implications with empowering vulnerable consumers,” 29(2) International Journal of Consumer Studies, 119-24 (March 2005) • Editor, HARVARD JOURNAL OF INTERNATIONAL LAW• Coxswain, Oxford Blue Boat (1984 & 1985)• Coxswain, Princeton University Varsity Crew (1982 & 1983)