LAWYER PROFILE
Liza M. Walsh

Liza M. Walsh

USA 2026

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Ranked in 2 practice areas

About

Provided by Walsh Pizzi O'Reilly Falanga LLP

Practice Areas

Business & Commercial Litigation, Class Action Defense, Intellectual Property & Trade Secret Litigation, Mediation, Arbitration & Special Master Appointments

Professional Memberships

American Bar Association, American Arbitration Association, Essex County Bar Association, New Jersey State Bar Association, New Jersey Patent Rules Advisory Committee, New York Intellectual Property Law Association, The Association of the Federal Bar of New Jersey, The Federal Circuit Bar Association, The Fellows of the American Bar Foundation

Personal

Liza M. Walsh is a highly sought-after litigator with experience representing some of the country’s largest and most prestigious companies. She focuses her practice on federal and complex commercial litigation, with an emphasis on intellectual property, antitrust and class action defense matters.

In her more than 30 years of experience, Liza has defended major pharmaceutical companies in significant patent litigation and acted as liaison counsel to groups of defendants in multi-party litigation. She has more than 150 published decisions and represents clients from a diverse range of industries, including pharmaceuticals, health and title insurance, financial services, life sciences, technology, and other service and product industries. She has also served as an arbitrator in major commercial proceedings, amid a growing demand for more female representation in the field.

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Litigation: General Commercial - New Jersey

Band 1
Band 1

Individual Editorial
Liza Walsh offers significant experience representing corporations in an array of disputes, including IP litigation and class actions.

Intellectual Property - New Jersey

Band 3
Band 3

Individual Editorial

Liza Walsh is a founding partner of Walsh Pizzi O'Reilly Falanga and a seasoned intellectual property litigator. She is particularly adept at assisting pharmaceutical companies and is often sought as local counsel for Hatch-Waxman litigations in New Jersey.

Strengths

Provided by Chambers

  • Liza has unparalleled knowledge of New Jersey judges and practices, and her advice always makes her clients look good.

    Litigation: General CommercialChambers Guide to the USA
  • Liza had thorough knowledge of the subject matter.

    Litigation: General CommercialChambers Guide to the USA
  • Liza Walsh is the main player in the state in litigation.

    Litigation: General CommercialChambers Guide to the USA
  • Liza knows everyone and everyone respects her. She is the perfect New Jersey counsel.

    Intellectual PropertyChambers Guide to the USA
  • Liza is a very good attorney.

    Intellectual PropertyChambers Guide to the USA
  • Liza has fantastic judgment. She knows the courts and is effective in answering questions about them.

    Intellectual PropertyChambers Guide to the USA

Ranked Individuals at Walsh Pizzi O'Reilly Falanga LLP (4)

New Jersey

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