Margaret Irene O’Brien
On the New York attorney register since 2002 · office in New York, NY
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 4090478
- Admitted
- 2002 · Third Department
- Status
- Currently registered
- Next registration
- Jun 2028
Margaret Irene O’Brien is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 2002 in the Third Department, with an office in New York, NY; next registration due Jun 2028. The status is the same in all 3 files we hold.
What this status means on the register
On the register, “Currently registered” means Margaret Irene O’Brien has filed the biennial registration the court system requires; the next one is due in Jun 2028.
- 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
6 other attorneys list Zimmet Law Group, P.C. or one of its other names as their employer on the register; 3 of them were admitted before 2002, and all 7 give an office in New York, NY. The 5 whose admission is closest to 2002, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Brian Jeffrey Zimmet | 1992 | Currently registered |
| Richard Adam Schioppo | 1993 | Currently registered |
| Venkatesan P. Anandarangam | 1994 | Due to re‑register |
| Eldon Leon Looby | 2004 | Currently registered |
| Michelle Miaozi Geng | 2012 | 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
Margaret Irene O’Brien studied at Santa Clara University School of Law. 63 of its 236 living graduates on the register were admitted in the 2000s, as Margaret Irene O’Brien was.
- Same law school
- 236living graduates; 87.3% registered (current or due), against 87.1% overall
- Office in New York, NY
- 93,604living registrants
Of the 93,604 living registrants with an office in New York, NY, 31,301 were admitted before 2002 and 60,553 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
- Santa Clara University School of Law graduates on the register236 living, 87.3% registered.
- Attorneys with an office in New York, NY93,604 living registrants give an office there.
- New York County’s registered bar75,989 currently registered, 46.63 per 1,000 residents.
- Admitted in 20027,981 people admitted in 2002 are on the register, 2,250 of them through the Third 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 Margaret Irene O’Brien’s standing, contact the Attorney Registration Unit of the NY Office of Court Administration (nycourts.gov/attorneys), or ask the Appellate Division, Third Department, which admitted Margaret Irene O’Brien in 2002. A complaint about this attorney would go to the First Department’s grievance committee, which covers New York 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).