USA Guide 2026 : Massachusetts
Ranked Individuals
Provided by WilmerHale
Our lawyers have played an integral role in many of the most significant cases across the globe over the past several years, including internal and governmental investigations; patent, copyright and trademark cases; regulatory, government and public policy disputes; securities class action lawsuits; and federal and state appellate cases. Clients rely on our strong understanding of their industries and business goals, pragmatic and clear advice—even in the midst of complicated issues, complex legal and regulatory regimes, and high-stakes decisions—and ability to deliver practical solutions to real-world problems. Our cases and achievements cut across the litigation spectrum, and we have experience across industries, including aviation; bankruptcy and commercial; communications; defense and national security; government contracts; energy, environment and natural resources; financial institutions; labor and employment; technology; and trade.
To learn more about WilmerHale's Litigation practice, visit: https://www.wilmerhale.com/en/solutions/litigation
Provided by Chambers
WilmerHale offers market-leading advice in areas such as securities litigation and complex civil disputes. The firm is acclaimed for its strength in cases involving IP matters. Its clients include Fortune 500 companies, hedge funds and financial services institutions. The firm provides extensive expertise with respect to class actions and derivative claims.
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WilmerHale represented Alexandria Real Estate Equities in a lawsuit brought by a former commercial tenant.
Provided by Chambers
They are great counsel and provide excellent client service.
WilmerHale is a benchmark firm.
The team at WilmerHale provides quick response times, practical advice and superior written work.
WilmerHale is excellent in framing strategy.
WilmerHale has the scale and resources to tackle complex matters, coupled with the deep experience and litigation chops to actively defend corporate clients.
Provided by Chambers
William Paine continues to be a leading lawyer in the securities litigation space. He has substantial experience in the defence of high value securities class actions.
William Paine is a true dean of the Bar.
Felicia Ellsworth is vice-chair of WilmerHale’s litigation and controversy department. She is highlighted for her abilities as trial and appellate advocate in a range of high stakes litigation.
Felicia Ellsworth is a tremendous lawyer and litigator.
Felicia does an outstanding job as a trial attorney.
John Butts is a go-to litigator. He is super smart, thorough and a great ability to get the best result.
John Butts is extremely practical, smart and strategic.
Timothy Perla is recognised for his securities litigation practice and is skilled in advising clients on a wide range of class actions and shareholder derivative lawsuits.
Timothy Perla does a great job and is proactive and responsive in his approach.
Timothy Perla is really great in terms of his legal support.
Timothy Perla provides terrific work product and is a really smart lawyer who does a great job.
Timothy Perla is just excellent across the board.
Timothy is a valued outside resource for the thorniest of legal issues.
Andrew Dulberg has a broad base of commercial disputes expertise, including handling securities and real estate-related litigation.
Clients secure the best possible representation with Andrew.
Andrew is a fabulous writer, a wonderful cross-examiner and a great strategist. He enthusiastically defends his clients and is also a great team leader.
Robert Smith has growing experience in state and federal securities litigation, which sees him assist public companies and their senior figures.
Robert Smith is very highly thought of in securities litigation.
Working with Robert Smith is a great experience.
Robert Smith is an absolutely great guy who gives such great advice. He is a one man army.
Robert is an exceptional partner to work with.
Litigation: General Commercial
Litigation: General Commercial
Litigation: General Commercial
Litigation: Securities
Litigation: Securities
Litigation: Securities
Provided by WilmerHale
Felicia H Ellsworth
View profile of Felicia H EllsworthAndrew Dulberg
View profile of Andrew DulbergWilliam H Paine
View profile of William H PaineJohn Butts
View profile of John ButtsTimothy J Perla
View profile of Timothy J PerlaRobert Smith
View profile of Robert Smith
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