Hecker Fink LLP‘s ’smart, reasonable and trustworthy’ litigation group leads on highly complicated commercial disputes spanning False Claims Act lawsuits, trade secrets misappropriation cases, and RICO and fraud claims. With a presence in New York and Washington DC, governmental bodies, major law firms and financial services groups all rely on the firm’s counsel, and the practice has also notably worked closely with a number of major professional sports leagues and organizations facing litigation. Bring deep experience in commercial litigation, Sean Hecker leads on high-value fraud, bankruptcy, and civil RICO lawsuits as well as on breach of contract and trade practice disputes, while Julie Fink has led on post-transactional litigation, employment claims, and commercial arbitrations. John Quinn is a key contact in the media, technology and entertainment sectors, Gabrielle Tenzer has acted on high-profile mandates concerning crypto trading, and Kate Doniger has experience in employment disputes.
Legal 500 Editorial commentary

Accolades

Client satisfaction: Lawyer & team quality
Client satisfaction: Sector knowledge
Client satisfaction: NPS ®

Testimonials

Collated independently by Legal 500 research team.

  • ‘Julie Fink, Kate Doniger are both great - our negotiations were extended, incredibly sensitive and nuanced. Both Julie and Kate demonstrated their expertise, creativity, emotional intelligence and reasonableness throughout the process. I really appreciated their approach.’
  • ‘The partners at Hecker Fink demonstrate exceptional legal acumen combined with strong commercial awareness. They are highly responsive and accessible, often providing real-time strategic guidance during critical moments. What distinguishes them most is their ability to distill complex legal issues into clear, actionable advice that aligns with business objectives.'
  • ‘Hecker Fink stands out for their exceptional responsiveness and deep understanding of complex commercial disputes. The practice combines sophisticated legal strategy with practical business judgment, making them particularly valuable for technology companies navigating high-stakes litigation. Their team demonstrates remarkable efficiency in case management and consistently delivers work product that is both thorough and strategically focused.’
  • 'I found the team at Hecker Fink to be smart, reasonable and trustworthy. They were creative, always available and dedicated to getting the matter done in a manner that makes sense.’

Key clients

  • Amentum
  • SLR Capital Partners
  • Citadel Securities Americas LLC
  • Goldman Sachs
  • Wirtz Law
  • The Invus Group LLC
  • Dechert LLP
  • Alaska Airlines, Inc.
  • Portier LLC (Uber Eats)
  • National Basketball Association
  • Major League Baseball
  • Milbank LLP

Work highlights

Representing Amentum, formerly known as AECOM Government Services, Inc., in a False Claims Act lawsuit, alleging false labor billing on a contract AECOM and related entities performed for the U.S. Government in Afghanistan.
Represented two former Lexeo Pharmaceuticals scientists in a defense of trade secrets and breach of contract action brought by their former employer, Rocket Pharmaceuticals.
Representing a prominent Australian businessman and philanthropist, in a high-profile lawsuit against Meta arising from scam ads that misappropriated his name and likeness and ran on Meta’s platforms.

Lawyers

Next Generation Partners

Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.

Practice head

Gabrielle Tenzer

Other key lawyers

Sean Hecker; Julie Fink; John Quinn; Kate Doniger