Colleran, O'Hara & Mills L.L.P.

About Colleran, O'Hara & Mills L.L.P.

Colleran, O'Hara & Mills L.L.P. describes its history as beginning in 1963 under Richard L. O'Hara. Its clients have included labor organizations, their related fringe benefit funds, and individual union members. The firm's main area is labor law, which its website characterizes as covering relations between labor and management and internal union matters. It also handles ERISA work for Taft-Hartley employee benefit plans, and it emphasizes arbitration in contract enforcement.

Attorneys have litigated in State and Federal courts and appear before the Department of Labor, the Public Employment Relations Board, and the National Labor Relations Board. The website also mentions asbestos-related work for union members, carried out with Weitz & Luxenberg, P.C. A U.S. News listing gives its one office as Woodbury, New York, at 100 Crossways Park Drive West, Suite 200. A third-party archive says it represents labor organizations in New York City, Long Island, and surrounding areas.

Practice areas

Areas of work that Colleran, O'Hara & Mills L.L.P. 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 29, 2026). Attorney list from the New York State Unified Court System registration data. Not affiliated with Colleran, O'Hara & Mills L.L.P..

Registered attorneys

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