Meghan Hennessy Sullivan
On the New York attorney register since 2009 · office in New York, NY
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 4751772
- Admitted
- 2009 · First Department
- Status
- Currently registered
- Next registration
- Dec 2027
Meghan Hennessy Sullivan is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 2009 in the First Department, with an office in New York, NY; next registration due Dec 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 Meghan Hennessy Sullivan has filed the biennial registration the court system requires; the next one is due in Dec 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
7 other attorneys list Zeisler PLLC or one of its other names as their employer on the register; 6 of them were admitted before 2009, and 7 of the 8 give an office in New York, NY. The 5 whose admission is closest to 2009, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Brian Anthony Burns | 1994 | Currently registered |
| Mark Norman Mutterperl | 1999 | Currently registered |
| Aaron Mark Zeisler | 2000 | Currently registered |
| Daniel Ben Ravicher | 2001 | Currently registered |
| Pauline Xenia Andrews | 2025 | Currently registered |
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
Meghan Hennessy Sullivan studied at Columbia Law School (the register spells it “COLUMBIA UNIVERSITY”). 3,978 of its 18,953 living graduates on the register were admitted in the 2000s, as Meghan Hennessy Sullivan was.
- Same law school
- 18,953living graduates; 87.4% 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, 45,161 were admitted before 2009 and 45,994 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 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 200910,203 people admitted in 2009 are on the register, 3,831 of them through the First 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 Meghan Hennessy Sullivan’s standing, contact the Attorney Registration Unit of the NY Office of Court Administration (nycourts.gov/attorneys), or ask the Appellate Division, First Department, which admitted Meghan Hennessy Sullivan in 2009. 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).