John Joseph Kuster
On the New York attorney register since 1992 · office in New York, NY
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 2466308
- Admitted
- 1992 · First Department
- Status
- Due to re‑register
- Next registration
- Jul 2026
John Joseph Kuster is due to re‑register on the New York attorney register file of Sep 29, 2026. Admitted in 1992 in the First Department, with an office in New York, NY; next registration due Jul 2026. The status is the same in all 3 files we hold. The registration was due in Jul 2026 and the register has not recorded it as filed.
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.
- Due to re‑register unchanged
- Due to re‑register unchanged
- Due to re‑register 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
799 other attorneys list Sidley Austin LLP or one of its other names as their employer on the register; 45 of them were admitted before 1992, and 533 of the 800 give an office in New York, NY. The 5 whose admission is closest to 1992, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Barbara Jean Endres | 1992 | Currently registered |
| Scott Tadashi Nonaka | 1992 | Currently registered |
| James O’Connor | 1992 | Currently registered |
| Bridget Roe O’Neill | 1992 | Currently registered |
| Leslie Ann Plaskon | 1992 | 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
John Joseph Kuster studied at New York University School of Law (the register spells it “NYU”). 3,638 of its 23,248 living graduates on the register were admitted in the 1990s, as John Joseph Kuster was.
- Same law school
- 23,248living graduates; 86.5% 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, 16,207 were admitted before 1992 and 76,145 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 Sidley Austin LLP800 on the register, 45 of the others admitted before 1992; 533 of the 800 give an office in New York, NY.
- New York University School of Law graduates on the register23,248 living, 86.5% 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 19926,498 people admitted in 1992 are on the register, 2,198 of them through the First 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 John Joseph Kuster’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 John Joseph Kuster in 1992. 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).