The practice at Weil, Gotshal & Manges LLP is led by Diane Sullivan and David Singh. Based in New York, Sullivan serves as lead trial counsel in MDL matters involving cosmetic companies accused of selling carcinogenic hair relaxers and advises electronic manufacturers facing wrongful death and personal injury claims. Singh, based in Northern California, serves as national counsel in greenwashing actions against apparel companies and leads public nuisance matters related to alleged plastic pollution. In Miami, Pravin Patel defends apparel brands against claims of deception, product defects, and imminent injury. In Washington DC, Arianna Scavetti and Drew Tulumello advise food and beverage manufacturers on claims alleging that ultra-processed foods are designed to be addictive to children, mislabeling of “zero sugar” products containing allulose, and challenges to representations regarding recycling and plastic use.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- 'They exemplify high levels of competence, intellect, experience, and a strong work ethic. They can quickly secure expertise across various legal fields, demonstrating the sophistication needed to navigate complex situations and adaptability to fast-changing circumstances.'
- 'Qualities of the team include sound judgment, collaboration, efficiency, proper prioritization, and effectiveness under pressure, especially when faced with 24/7 deadlines. Ultimately, the firm’s success relies on team depth, strong leadership, and the capability to respond effectively to challenges.'
- 'I have worked with the Weil team on a large, complex international case. The Weil team was all of high character and, simply stated, were also kind people who, while high-powered, were also delightful to be with while fighting in the battle together.’
- 'Pravin Patel has the critical ability to adaptively assess our situation and the opposition’s competitive posture. Pravin understands how to assess when to tactically fight on, taking more ground and pushing for either a settlement or, happily in our case, dismissal with prejudice while not paying even one penny in settlement. Pravin proves to be victorious even against the most dominant opposition lawyers in the tort plaintiff competitive landscape.’
Key clients
- L’Oreal, S.A.
- ExxonMobil Corporation
- PepsiCo
- Apple
- Johnson & Johnson
- Meta Platforms
- Frito-Lay
- Paramount Global
- General Electric Co.
- The Procter & Gamble Company
- Sanofi, S.A.
- Alibaba Group
Work highlights
Secured a major early victory for L’Oreal in one of the largest mass torts MDLs filed in the personal hair-care sector, encompassing more than 8,000 cases in total, for the allegation that hair relaxers caused breast, uterine, and other cancers.
Assisted in winning a decisive dismissal of PepsiCo in a novel lawsuit, alleging that PepsiCo, and several of the nation’s most iconic food manufacturers, intentionally designed and marketed so-called “ultraprocessed” foods (UPFs) to be addictive to children, causing chronic diseases.
Defended ExxonMobil as a national trial counsel in defense of numerous high-stakes public nuisance lawsuits regarding plastics pollution, which will be bellwether cases to watch as states and municipalities seek to hold chemical producers responsible for plastics pollution.
Lawyers
Hall of Fame
The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
Diane Sullivan; David Singh
Other key lawyers
Arianna Scavetti; Drew Tulumello; Pravin Patel