Official NY OCA attorney registration data · Updated 2026 Methodology Discipline records
Law firm

Simon Greenstone Panatier, PC

10 attorneys in the New York State Bar registry list this organization as their firm or employer.

About Simon Greenstone Panatier, PC

Simon Greenstone Panatier, PC is a trial law firm founded in 2006 that represents people in complex legal disputes, often against large corporations. Its website lists work in mesothelioma, catastrophic injury and wrongful death, product liability, pharmaceutical litigation, toxic torts and commercial litigation. The firm states that its lawyers are prepared to try serious cases in courtrooms across the country, and it presents trial work as the core of how it serves clients.

The firm is headquartered in Dallas, Texas, and also has offices in Houston, Texas and Long Beach, California. Its New York office, at 420 Lexington Avenue in New York City, was opened to extend the firm's Dallas and Los Angeles presence and its serious injury practice nationwide. The firm's contact page lists the New York office among its four locations, and New York City is the only New York State location identified in the sources reviewed.

TypeLaw firm
New York officesNew York City
Phone212-634-1690
Websitesgptrial.com
Registered NY attorneys10

Practice areas

Areas of work that Simon Greenstone Panatier, PC describes on its own website. They describe the organization as a whole, not the practice of any individual attorney listed below.

Personal Injury Medical Malpractice Commercial Litigation

Organization profile based on its official website and public sources (reviewed October 29, 2026). Attorney list from the New York State Unified Court System registration data. Not affiliated with Simon Greenstone Panatier, PC.

Registered attorneys

Brendan Tully Admitted 2006 · New York, NY Currently registered Shaina Weissman Admitted 2014 · New York, NY Currently registered Robert Ellis Admitted 2017 · New York, NY Currently registered Michael Deruve Admitted 2018 · New York, NY Currently registered Matthew La Sorsa Admitted 2018 · New York, NY Currently registered Christina Gutierrez Admitted 2019 · New York, NY Currently registered Cassidy Stewart Admitted 2020 · New York, NY Currently registered Tayler Helfand Admitted 2020 · New York, NY Currently registered Katie Prior Admitted 2022 · New York, NY Currently registered Kayla Sultemeier Admitted 2025 · New York, NY Currently registered

Registration status can change at any time. Confirm any attorney's current status through the official New York Attorney Search.

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