Mary Kerin O'Neill
- Verified against the New York State attorney registration file, July 2026
10 years in practice
First admitted in 2016
First admitted in 2016
- 2016 Admitted, New York
Overview
Mary Kerin O'Neill is an attorney admitted in New York (since 2016), based in Stony Brook, NY.
This profile is built from public bar records and shows only what those records contain. Mary has not written or endorsed anything on this page.
Jurisdictions admitted
| Jurisdiction | Admitted | Bar number | Status |
|---|---|---|---|
| New York | 2016 | #5442371 | Active |
Education
- Maurice A. Deane School of Law at Hofstra UnivLaw school, per the bar record
Contact and offices
Mary Kerin O'Neill, P.C.
215 Hallock Rd Ste 6c
Stony Brook, NY 11790
The address and number above come from the attorney's public bar registration, which can lag a recent move. Confirm before visiting.
Other attorneys in Stony Brook
Ordered by years licensed, from the same public records.
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.