Gwyn Williams > Latham & Watkins LLP > Boston, United States > Lawyer Profile

Latham & Watkins LLP
United States

Work Department

Gwyn Williams, a partner and Global Chair of the Product Liability, Mass Torts & Consumer Class Actions Practice, has extensive experience in the defense of mass tort and product liability claims, and other types of personal injury/wrongful death claims. Her experience has encompassed the defense of manufacturers of cigarettes, industrial products, and a wide range of pharmaceutical products and medical devices.


Litigation Partner


Lawyer Rankings

United States > Dispute resolution > Product liability, mass tort and class action - defense: consumer products (including tobacco)

(Leading lawyers)

Gwyn Williams – Latham & Watkins LLP

The ‘extremely talented and experienced’ team at Latham & Watkins LLP is ‘capable of providing first-class advice across a wide variety of product liability matters’. The firm has, however, undoubtedly gained most acclaim for its market-leading work in the tobacco sector, where it is appreciated for being ‘super knowledgeable about the law and the science’. In this context, it continues to represent Philip Morris in a raft of major domestic and international cases, including defending it in multiple individual smoking and health cases in Massachusetts. A ‘brilliant trial lawyer’ and a ‘master strategist‘, Boston-based Kenneth Parsigian is pivotal to the firm’s work for Philip Morris particularly in a domestic setting. ‘Highly adept at dealing with experts and technical subjects’, Washington DC-based Christine Rolph is also a vital member of the team and continues to excel in her role for Philip Morris in international litigation brought against the company. ‘A jack of all trades’, the ‘thoughtful and responsive’ Boston-based Gwyn Williams co-heads the overarching team alongside Parsigian, and as well as also assisting on tobacco-related work is noted for her expertise defending corporates in consumer class actions, where she is ‘excellent at co-ordinating a large team’. 

United States > Dispute resolution > Product liability, mass tort and class action - defense: toxic tort

Forming a part of the firm’s overarching product liability, mass tort and consumer class action group, which is led from Boston by Gwyn Williams and Kenneth Parsigian, Latham & Watkins LLP‘s toxic tort offering is praised for its ‘very good handle on complex legal and technical issues’, as well as its ability ‘think very strategically’. The ‘practical-minded’ team also a enjoys a synergistic relationship with the broader environmental offering, enabling it to draw from highly specific substantive expertise, as well as lawyers benefiting from significant regulatory knowledge, of great relevance to the toxic torts which regularly arise in the sector. A member of the environmental group, New York-based Kegan Brown is ‘extremely motivated, driven and highly intelligent’, and is particularly adept at managing toxic tort matters proceeding on multiple fronts. Mary Rose Alexander  in Chicago regularly defends clients in multi-plaintiff actions in federal and state courts involving alleged exposure to chemicals, lead, metals and solvents.

United States > Industry focus > Healthcare: health insurers

Latham & Watkins LLP provides a combination of high value transactional and complex litigation services to its clients. For transactions, the team is equally skilled with capital markets work, where it acted as counsel to Oscar Health in its $1.5bn IPO, and M&A, where it counselled AON on its proposed merger with Willis Towers Watson. In litigation, Boston-based Gwyn Williams and David Tolley are acting for UnitedHealth Group in a series of out-of-network underpayment claims in Arizona. Washington DC-based Daniel Meron brings expertise in False Claims Act cases, and Los Angeles-based Daniel Settelmayer offers regulatory and transactional advice to his clients. The overall healthcare group is led by John Manthei and Judith Hasko, based in DC and Silicon Valley respectively.