Keith Nicholas Costa
On the New York attorney register since 1985 · office in New York, NY
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 1998111
- Admitted
- 1985 · First Department
- Status
- Currently registered
- Next registration
- Sep 2027
Keith Nicholas Costa is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 1985 in the First 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 Keith Nicholas Costa 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
250 other attorneys list Barclay Damon LLP or one of its other names as their employer on the register; 38 of them were admitted before 1985, and 29 of the 251 give an office in New York, NY. The 5 whose admission is closest to 1985, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Mary C. Cahill | 1984 | Currently registered |
| Jeffrey Austin Dove | 1985 | Currently registered |
| Peter Stewart Marlette | 1985 | Currently registered |
| Lisa Christine Arrington | 1986 | Currently registered |
| Michael Jude Lane | 1986 | 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
Keith Nicholas Costa studied at American University Washington College of Law (the register spells it “American University Washington D.C. College of Law”). 454 of its 4,261 living graduates on the register were admitted in the 1980s, as Keith Nicholas Costa was.
- Same law school
- 4,261living graduates; 88.3% 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, 8,839 were admitted before 1985 and 83,743 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 Barclay Damon LLP251 on the register, 38 of the others admitted before 1985; 29 of the 251 give an office in New York, NY.
- American University Washington College of Law graduates on the register4,261 living, 88.3% 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 19856,046 people admitted in 1985 are on the register, 1,883 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 Keith Nicholas Costa’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 Keith Nicholas Costa in 1985. 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).