Matthew Dudley Cooper
On the New York attorney register since 2023 · office in Armonk, NY
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 6063200
- Admitted
- 2023 · Second Department
- Status
- Currently registered
- Next registration
- Jul 2027
Matthew Dudley Cooper is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 2023 in the Second Department, with an office in Armonk, NY; next registration due Jul 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 Matthew Dudley Cooper has filed the biennial registration the court system requires; the next one is due in Jul 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
122 other attorneys list Boies Schiller Flexner LLP or one of its other names as their employer on the register; 97 of them were admitted before 2023, and 14 of the 123 give an office in Armonk, NY. The 5 whose admission is closest to 2023, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Jared Kwang-Yao Lin | 2023 | Currently registered |
| Sigrid Stone McCawley | 2023 | Currently registered |
| Sophie Emily Roytblat | 2023 | Currently registered |
| Luke Joseph Williams | 2023 | Currently registered |
| Andres Alvarez Calderon Campos | 2024 | 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
Matthew Dudley Cooper studied at University of Virginia School of Law. 755 of its 4,707 living graduates on the register were admitted in the 2020s, as Matthew Dudley Cooper was.
- Same law school
- 4,707living graduates; 87.2% registered (current or due), against 87.1% overall
- Office in Armonk, NY
- 264living registrants
Of the 264 living registrants with an office in Armonk, NY, 254 were admitted before 2023 and 7 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 Boies Schiller Flexner LLP123 on the register, 97 of the others admitted before 2023; 14 of the 123 give an office in Armonk, NY.
- University of Virginia School of Law graduates on the register4,707 living, 87.2% registered.
- Attorneys with an office in Armonk, NY264 living registrants give an office there.
- Westchester County’s registered bar7,255 currently registered, 7.26 per 1,000 residents.
- Admitted in 20238,985 people admitted in 2023 are on the register, 2,666 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 Matthew Dudley Cooper’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 Matthew Dudley Cooper in 2023. A complaint about this attorney would go to the Second Department’s Grievance Committee for the Ninth Judicial District, which covers Westchester 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).