Robert Patrick O'Brien

38 years of practiceLicensed in New YorkMahon, Mahon, Kerins & O'Brien LLC, Garden City

38 years in practice
First admitted in 1988
  1. 1988 Admitted, New York

Overview

Robert Patrick O'Brien is an attorney admitted in New York (since 1988), based in Garden City, NY.

This profile is built from public bar records and shows only what those records contain. Robert has not written or endorsed anything on this page.

Jurisdictions admitted

JurisdictionAdmittedBar numberStatus
New York1988#2176246Active

Education

  • St. John's University School of LawLaw school, per the bar record

Contact and offices

Mahon, Mahon, Kerins & O'Brien LLC

254 Nassau Blvd
Garden City, NY 11530

The address and number above come from the attorney's public bar registration, which can lag a recent move. Confirm before visiting.

Sources for this profile: the New York State attorney registration file. License status can change; check the bar's own record for the current status before hiring. Updated July 12, 2026.