He has extensive experience navigating high-stakes matters involving crisis response, whistleblower complaints, and alleged regulatory violations and other business misconduct. Jack works closely with clients to uncover critical facts and develop robust, technical, and cost-effective strategies tailored to their unique needs.

In addition to his white-collar work, Jack counsels clients on regulatory matters involving the Federal Food, Drug, and Cosmetic Act (FFDCA), the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), and the Toxic Substances Control Act (TSCA), often at the intersections of these overlapping regimes, including for antimicrobial products. He also maintains an active appellate litigation practice and has led the drafting of briefs filed in the U.S. Supreme Court and D.C. Circuit. In 2025 and 2026, “Best Lawyers: Ones to Watch,” recognized Jack for his environmental regulatory and litigation work.

Jack is a leader in the firm’s technology initiatives, serving as deputy chair of the Technology & Innovation Committee and as a member of the firm’s AI Steering Committee. He regularly leverages AI tools to streamline document-heavy and data-intensive workflows while maintaining rigorous quality assurance and sensitivity to confidentiality and privilege. Jack also develops bespoke research and review tools for case teams and trains and advises attorneys and paralegals on practical, responsible ways to use emerging AI capabilities to deliver faster, higher-quality work for clients.

During law school, Jack served for two years on the Board of Student Advisers, was an Article Editor for the Environmental Law Review, and conducted legislative and policy research through Harvard’s Food Law & Policy Clinic. His legal career draws on a diverse background that includes experience as a political campaign media consultant, a farmer, and a high school History and English teacher.

Jack maintains an active pro bono practice, representing asylum seekers, survivors of domestic violence, and assisting environmentally focused businesses and nonprofits. He received High Honors Recognition on the Capital Pro Bono Honor Roll from 2021 to 2023.