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Sepe & O'Mahony, PLLC

Commercial Litigation, Insurance, Personal Injury


From top: William O'Mahony, Michael Sepe  

By combining the resources and skills of large law firm experience with the practical efficiencies of a boutique practice, attorneys Michael Sepe and William O’Mahony have established a firm that is able to deliver high-caliber services in a cost-effective manner.

Sepe & O’Mahony, PLLC is well known for its record of success at trials and through dispositive motion practice, particularly in the area of high-stakes business and commercial litigation. Because of this reputation, the firm is often referred cases from other lawyers who seek experienced trial counsel in the areas of commercial litigation and insurance litigation. As evidence of their success, decisions in cases litigated by Sepe or O’Mahony have been published in the official federal and New York State reporters or the New York Law Journal more than 18 times.

In recognition of this track record, Sepe and O’Mahony have each been rated AV Preeminent® by Martindale-Hubbell®, and O’Mahony has been inducted to the Multi-Million Dollar Advocates Forum. Moreover, though both attorneys have focused on business disputes and commercial matters for the majority of their careers, they bring to their practice varied expertise (Sepe first served as a Nassau County Assistant District Attorney and O’Mahony began his career defending insured policyholders and insurance carriers). This experience in turn allows them to offer services in such areas as insurance, criminal, and serious personal injury litigation. Finally, having litigated numerous issues in connection with corporations and businesses of all types, the attorneys at Sepe & O’Mahony also serve as general counsel to several major businesses.

11 Clinton Avenue
Rockville Centre, New York 11570
ph: 516.766.0477
fax: 516.766.3618

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