About O'Brien LLP
O'Brien LLP is a New York law firm, and directory listings place its office in Manhattan. Its own website describes a practice built around complex commercial litigation, regulatory defense, employment and trade secret disputes, and white-collar criminal defense. The firm's attorneys are said to have extensive experience defending corporations and their principals in private actions under the federal securities laws.
The website also states that the firm has represented both employers and employees in compensation contracts, non-competition agreements and trade secret disputes, and has handled civil regulatory investigations by the Securities and Exchange Commission and the New York Attorney General. Directory addresses differ: one Super Lawyers profile lists 900 Third Avenue, while a FindLaw profile last updated in 2020 lists 750 Lexington Avenue. No Bay Shore or Staten Island office appears in the sources reviewed.
| Type | Law firm |
|---|---|
| New York offices | New York, NY |
| Website | obrienllp.com |
| Registered NY attorneys | 6 |
Practice areas
Areas of work that O'Brien LLP describes on its own website. They describe the organization as a whole, not the practice of any individual attorney listed below.
Organization profile based on its official website and public sources (reviewed October 30, 2026). Attorney list from the New York State Unified Court System registration data. Not affiliated with O'Brien LLP.
Registered attorneys
Raymond Obrien Currently registered Sara Welch Currently registered Sean O'Brien Currently registered Paul O'Brien Currently registered Grace Condro Currently registered Maxim Labunsky Currently registeredRegistration status can change at any time. Confirm any attorney's current status through the official New York Attorney Search.