Stuart H. Singer

A partner at Boies Schiller Flexner for over 20 years, Stuart Singer was described by Lawdragon as “a dazzling advocate in trial and appellate courts,” who is relied on “to win big when it matters.” He has done that for numerous Fortune 500 companies, as well as smaller businesses, individuals, and nonprofit organizations. On the plaintiffs’ side, Stuart has served as lead counsel in antitrust and securities representations that have recovered over $1 billion.

Stuart’s experience covers a wide variety of subjects, including antitrust, securities, energy, class action defense, civil fraud, unfair trade practices, professional liability defense, constitutional business law and health care. He has successfully defended the largest utility in the U.S., including in a billion dollar class action and before the Florida Supreme Court in a rate case and environmental litigation. He also has represented one of the preeminent law firms in the U.S. for over a decade. 

Stuart has been recognized by clients and peers as one of the top lawyers in the nation by Chamber & Partners, Best Lawyers in America, and Lawdragon. He has won multiple Most Effective Lawyer awards from the Daily Business Review and has twice been named The American Lawyer’s Litigator of the Week.

Stuart’s appellate work has included matters in virtually every federal appellate court in the country, including the U.S. Supreme Court, and he has successfully argued cases in the second, fifth, ninth, tenth and eleventh federal circuits, as well as the Florida Supreme Court and state appellate courts.

The firm’s 10-year pro bono case on behalf Florida’s children on Medicaid, which “may have changed more lives than any U.S. litigation of the past decade” (Lawdragon, 2016), was led by Stuart and resulted in improved access to medical and dental care for a class of 2 million children.

Stuart has served on and is past board chair for the National Association for Urban Debate Leagues, which supports debate programs for inner city high school students across the United States. Stuart also has been elected a member of the American Law Institute, and the board of directors for the Holocaust Documentation & Education Center. He is the co-author of a treatise on trade secrets litigation, and has taught public interest law on the adjunct faculty at the University of Miami Law School and at Harvard Law School.

Stuart is a member of the firm’s Executive Committee.

Stuart’s representative matters include:

• Lead counsel for the nation’s largest producer of renewable energy, for over 15 years, in numerous matters, including successful defense of a class action seeking over $1 billion
• Litigating commerce clause challenge to Texas law that only allows incumbent Texas utilities to construct, own and operate new interstate transmission lines; argued and won Fifth Circuit Court of Appeals that the law was facially discriminatory, cert. pending
• Lead counsel for one of the nation’s most prominent law firms in professional liability matters, including winning a broad attorney immunity ruling from the U.S. Court of Appeals for the 5th Circuit and obtaining a directed verdict eliminating a claim for over $800 million in damages after an 8 week jury trial
• Successfully argued in the Florida Supreme Court in 2018 and 2019 representing Florida’s largest utility in its base rate case and environmental cost recovery; also won 2020 ruling from state intermediate appellate court establishing that the utility is not responsible for interruption of electricity following a major hurricane
• Lead counsel for Fortune 500 insurance and information services company for over 15 years in a variety of litigation and governmental matters, including jury trial in federal court in New Jersey in summer 2023
• Recovered more than $750 million for corporate clients who opted out of class actions alleging price fixing by liquid-crystal-display manufacturers and cathode ray tube manufacturers
• Led a pro bono case that, after a 93 day federal trial, resulted in a sweeping favorable decision, and led to improved medical and dental care for Florida children on Medicaid; the case, according to one commentator, “may have affected more lives than any litigation of the past decade” (Lawdragon); In 2022, negotiated extension of settlement to 2030
• Currently defending the nation’s largest cruise line in the first litigations ever brought under the Helms Burton Act regarding travel to Cuba
• Lead counsel in representing a class of distributors in obtaining significant classwide relief against the nation’s largest multilevel marketing company, which was described as transformative injunctive relief in the industry
• Co-lead counsel investor class in the largest of the Bernard Madoff feeder funds and recovered hundreds of millions of dollars; recognized with AmLaw Litigator of the week award
• Obtained dismissal of litigation brought by Receiver seeking to hold former officers and directors of a public company responsible for deepening insolvency, argued and won affirmance by the 11th Circuit–a result that was recognized by a Most Effective Lawyer award
• Represented a major national sports organization in successfully defending antitrust litigation alleging an unlawful monopoly
• Represented a major agricultural company in successful defense of antitrust litigation concerning pineapple products–argued and won 2nd Circuit appeal affirming summary judgment
• Obtained dismissal of shareholder derivative action for failure to satisfy demand requirements under Delaware law
• Representing international distributor of sports trading cards in multijurisdictional litigation involving antitrust, and unfair competition torts

Co-author, In This Pandemic, Let’s Nix Business as Usual for Regulatory Approvals (April 2020)

Academic Debaters Know an Easy Fix for Presidential Interruptions, Bloomberg Law (2020)

Trade Secrets: Law & Practice, with David W Quinto & Carla A McCauley, LexisNexis (2023 edition)

Note, Damage Awards for Constitutional Torts, 93 Harv. L. Rev. 966 (1980)

Case Comment, Good Faith Immunity of Municipalities Under 42 U.S.C. § 1983, 94 Harv. L. Rev. 215 (1980)