William T. Walsh, Jr.

Litigation - Antitrust Litigation - Intellectual Property

4.0 (1 reviews)

New York, New York

1+ years experience

Updated: Jan 03, 2026

Contact Information

212-969-3000

https://www.proskauer.com/professionals/william-walsh

Eleven Times Square Eighth Avenue & 41st Street New York NY US

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Bio

William T. Walsh, Jr. is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law, Litigation - Antitrust and Litigation - Intellectual Property. William T., who practices law in New York, New York, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which William T. is held by other top lawyers in the same geographic and legal practice area.

Local Legal Snapshot

Jurisdiction

New York

State Capital

Albany

Highest Court

New York Court of Appeals

Bar Association

New York State Bar Association

Typical Consultation

$150-$300

Typical Hourly Range

$250-$450/hr

Fee Model Notes

Hourly or flat-fee billing is common.

Estimates vary by market, complexity, urgency, and attorney experience.

Practice Areas

Litigation - Antitrust Litigation - Intellectual Property

Awards & Recognition

Recognized: Insurance Law
Recognized: Litigation - Antitrust
Recognized: Litigation - Intellectual Property

Recognized in Ones to Watch since 2024

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Reviews

Melissa Harris

3 months ago

A strategic and knowledgeable advocate for complex litigation

We engaged William Walsh at Proskauer Rose for a high-stakes matter where our company faced allegations of anti-competitive behavior intertwined with intellectual property disputes. While his official experience is listed as one year, his deep, substantive knowledge in both antitrust and IP litigation was immediately apparent and proved invaluable. He clearly operates with the support and resources of a top-tier firm. William dissected the complex issues with precision, and his strategic guidance during settlement negotiations was outstanding. His recognition by Best Lawyers in these specific fields is well-deserved. The only slight drawback was that during particularly intense phases, response times from his direct line could stretch a bit, but his associates were always available. I would confidently recommend him for multifaceted commercial litigation.