Anthony J. Costantini
On the New York attorney register since 1973 · office in New York, NY
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 1198621
- Admitted
- 1973 · First Department
- Status
- Currently registered
- Next registration
- Sep 2028
Anthony J. Costantini is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 1973 in the First Department, with an office in New York, NY; next registration due Sep 2028. Since Jul 3, 2026 it has moved only through the routine two-year cycle.
What this status means on the register
On the register, “Currently registered” means Anthony J. Costantini has filed the biennial registration the court system requires; the next one is due in Sep 2028.
- Due to re‑register to Currently registered the routine two-year cycle: the registration window closed with a filing
- Currently registered to Due to re‑register the routine two-year cycle: the registration window opened
- 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
239 other attorneys list Duane Morris LLP or one of its other names as their employer on the register; 15 of them were admitted before 1973, and 129 of the 240 give an office in New York, NY. The 5 whose admission is closest to 1973, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Michael L. Lipman | 1971 | Currently registered |
| Michael H. Leeds | 1972 | Due to re‑register |
| James Frederick Rittinger | 1972 | Due to re‑register |
| Robert Paul Bramnik | 1974 | Due to re‑register |
| Leslie David Corwin | 1974 | 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
Anthony J. Costantini studied at Columbia Law School (the register spells it “COLUMBIA”). 1,448 of its 18,953 living graduates on the register were admitted in the 1970s, as Anthony J. Costantini 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, 1,883 were admitted before 1973 and 91,439 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 Duane Morris LLP240 on the register, 15 of the others admitted before 1973; 129 of the 240 give an office in New York, NY.
- 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 19732,460 people admitted in 1973 are on the register, 907 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 Anthony J. Costantini’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 Anthony J. Costantini in 1973. 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).