Official NY OCA attorney registration data · Updated 2026 Methodology Discipline records

Grainne Elizabeth O'Neill

Currently registered

Grainne Elizabeth O'Neill is an attorney admitted to the New York State Bar in 2013, with a registered practice address in Brooklyn, New York. According to the New York Office of Court Administration, the current registration status on record is Currently registered.

Registration number5123187
Bar statusCurrently registered
Year admitted2013
Judicial departmentDepartment 2
Law schoolColumbia Law School
Practice cityBrooklyn, NY
CountyKings
Firm / organizationO Neill And Hassen, Llp
Office address25 8Th Ave Ste C, Brooklyn, NY, 11217
Phone(212) 203-1858
Next registration dueAug 2027

Office location

Registered office address on file with the New York State Bar. Verify before visiting, as the address reflects the contact on record and may be a firm rather than a personal office.

Verify this record

Bar status can change at any time. For the authoritative, real-time status of Grainne Elizabeth O'Neill, confirm directly through the official New York Attorney Search using the registration number above. This record is republished from public New York State data and is provided for reference only — it is not legal advice and not an endorsement.

Other attorneys in Brooklyn

See all attorneys in Brooklyn, NY →

Other graduates of Columbia Law School

See all graduates of this school →

Helpful resources

Created by SeoFune