Grainne Elizabeth O’Neill
On the New York attorney register since 2013 · office in Brooklyn, NY
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 5123187
- Admitted
- 2013 · Second Department
- Status
- Currently registered
- Next registration
- Aug 2027
Grainne Elizabeth O’Neill is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 2013 in the Second Department, with an office in Brooklyn, NY; next registration due Aug 2027. The status is the same in all 3 files we hold.
What this status means on the register
On the register, “Currently registered” means Grainne Elizabeth O’Neill has filed the biennial registration the court system requires; the next one is due in Aug 2027.
- Currently registered unchanged
- Currently registered unchanged
- Currently registered the first file we hold
Source: NY Office of Court Administration, attorney registration file (data.ny.gov, dataset eqw2-r5nb), downloaded Sep 29, 2026; the Jul 3, 2026 and Aug 6, 2026 files for the history.
Others who list this employer on the register
The only other attorney who lists O’Neill and Hassen or one of its other names:
| Attorney | Admitted | Status |
|---|---|---|
| Abraham Jabir Abegaz-Hassen | 2014 | Due to re‑register |
Source: NY Office of Court Administration, attorney registration file (data.ny.gov, dataset eqw2-r5nb), downloaded Sep 29, 2026; employer spellings merged (methodology).
Where this record sits on the register
Grainne Elizabeth O’Neill studied at Columbia Law School. 4,756 of its 18,953 living graduates on the register were admitted in the 2010s, as Grainne Elizabeth O’Neill was.
- Same law school
- 18,953living graduates; 87.4% registered (current or due), against 87.1% overall
- Office in Brooklyn, NY
- 7,312living registrants
Of the 7,312 living registrants with an office in Brooklyn, NY, 4,770 were admitted before 2013 and 2,342 after.
Source: NY Office of Court Administration, attorney registration file (data.ny.gov, dataset eqw2-r5nb), downloaded Sep 29, 2026; living registrants only.
Questions this record leads to
- Columbia Law School graduates on the register18,953 living, 87.4% registered.
- Attorneys with an office in Brooklyn, NY7,312 living registrants give an office there.
- Kings County’s registered bar5,931 currently registered, 2.25 per 1,000 residents.
- Admitted in 201310,251 people admitted in 2013 are on the register, 2,824 of them through the Second Department.
- Every registration that reads “Currently registered”286,911 on the register file of Sep 29, 2026, by decade of admission.
- What a New York lawyer may chargeThe court rules on fees, retainers and fee disputes, each cited.
How to confirm it officially
For a statement of Grainne Elizabeth O’Neill’s standing, contact the Attorney Registration Unit of the NY Office of Court Administration (nycourts.gov/attorneys), or ask the Appellate Division, Second Department, which admitted Grainne Elizabeth O’Neill in 2013. A complaint about this attorney would go to the Second Department’s Grievance Committee for the Second, Eleventh and Thirteenth Judicial Districts, which covers Kings County, where the register places the office.
This page reads the register file of Sep 29, 2026, and the court system’s own search can be newer; the register shows only the current value, so a suspension that ended before the files we hold, or a censure, leaves no trace here (Appellate Division decisions are published through the court system’s Law Reporting Bureau).