Leo Peter Arnaboldi III
On the New York attorney register since 1986 · office in New York, NY
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 2047546
- Admitted
- 1986 · Second Department
- Status
- Due to re‑register
- Next registration
- Oct 2026
Leo Peter Arnaboldi III is due to re‑register on the New York attorney register file of Sep 29, 2026. Admitted in 1986 in the Second Department, with an office in New York, NY; next registration due Oct 2026. Since Jul 3, 2026 it has moved only through the routine two-year cycle.
What this status means on the register
On the register, “Due to re‑register” means the attorney has a biennial registration falling due or overdue: the rule asks for it within 30 days after the attorney’s birthday in each alternate year, and the record gives the month it is due. The value stays until the register records the filing or marks the registration delinquent, so the month can have passed; by itself it is not a finding.
- Currently registered to Due to re‑register the routine two-year cycle: the registration window opened
- 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
622 other attorneys list Ropes & Gray LLP or one of its other names as their employer on the register; 9 of them were admitted before 1986, and 443 of the 623 give an office in New York, NY. The 5 whose admission is closest to 1986, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Mark Irwin Bane | 1986 | Currently registered |
| Mark Barnes | 1986 | Currently registered |
| Othon Alexander Prounis | 1987 | Currently registered |
| Patrick Diaz | 1988 | Currently registered |
| Stephen August Warnke | 1988 | 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
Leo Peter Arnaboldi III studied at Harvard Law School (the register spells it “HARVARD LAW”). 1,661 of its 14,378 living graduates on the register were admitted in the 1980s, as Leo Peter Arnaboldi III was.
- Same law school
- 14,378living graduates; 86.1% 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, 9,861 were admitted before 1986 and 82,760 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 Ropes & Gray LLP623 on the register, 9 of the others admitted before 1986; 443 of the 623 give an office in New York, NY.
- Harvard Law School graduates on the register14,378 living, 86.1% 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 19866,111 people admitted in 1986 are on the register, 2,598 of them through the Second Department.
- Every registration that reads “Due to re‑register”47,986 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 Leo Peter Arnaboldi III’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 Leo Peter Arnaboldi III in 1986. 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).