Donald Allan Hamburg
On the New York attorney register since 1964 · office in New York, NY
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 1456102
- Admitted
- 1964 · Second Department
- Status
- Currently registered
- Next registration
- Feb 2028
Donald Allan Hamburg is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 1964 in the Second Department, with an office in New York, NY; next registration due Feb 2028. The status is the same in all 3 files we hold.
What this status means on the register
On the register, “Currently registered” means Donald Allan Hamburg has filed the biennial registration the court system requires; the next one is due in Feb 2028.
- 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
66 other attorneys list Spencer Fane LLP or one of its other names as their employer on the register; 0 of them were admitted before 1964, and 43 of the 67 give an office in New York, NY. The 5 whose admission is closest to 1964, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Stephen James Fallis | 1967 | Due to re‑register |
| Arnold Richard Kaplan | 1972 | Currently registered |
| Diana J. Lee | 1974 | Due to re‑register |
| Robert Barnet Zimmerman | 1976 | Currently registered |
| David M. Rubin | 1977 | 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
Donald Allan Hamburg studied at Cornell Law School. 269 of its 7,028 living graduates on the register were admitted in the 1960s, as Donald Allan Hamburg was.
- Same law school
- 7,028living graduates; 87.8% 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, 389 were admitted before 1964 and 93,120 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 Spencer Fane LLP67 on the register, 0 of the others admitted before 1964; 43 of the 67 give an office in New York, NY.
- Cornell Law School graduates on the register7,028 living, 87.8% 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 19641,418 people admitted in 1964 are on the register, 682 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 Donald Allan Hamburg’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 Donald Allan Hamburg in 1964. 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).