Gillian Costello
On the New York attorney register since 1997 · office in New York, NY
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 2809127
- Admitted
- 1997 · Second Department
- Status
- Currently registered
- Next registration
- Sep 2027
Gillian Costello is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 1997 in the Second Department, with an office in New York, NY; next registration due Sep 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 Gillian Costello has filed the biennial registration the court system requires; the next one is due in Sep 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
12 other attorneys list Spivak Lipton LLP or one of its other names as their employer on the register; 6 of them were admitted before 1997, and all 13 give an office in New York, NY. The 5 whose admission is closest to 1997, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Eric Robert Greene | 1992 | Currently registered |
| Sara Anne Corello | 1993 | Currently registered |
| Hope Allison Pordy | 1995 | Currently registered |
| Adrienne Lisa Saldana | 1995 | Currently registered |
| Denis Patrick Duffey Jr. | 2004 | 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
Gillian Costello studied at Northeastern University School of Law. 213 of its 1,375 living graduates on the register were admitted in the 1990s, as Gillian Costello was.
- Same law school
- 1,375living graduates; 88.5% 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, 22,995 were admitted before 1997 and 68,993 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
- Everyone who lists Spivak Lipton LLP13 on the register, 6 of the others admitted before 1997; all 13 give an office in New York, NY.
- Northeastern University School of Law graduates on the register1,375 living, 88.5% 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 19977,066 people admitted in 1997 are on the register, 2,422 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 Gillian Costello’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 Gillian Costello in 1997. 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).