Michael P Heinz
On the New York attorney register since 2023 · office in New York, NY
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 6068423
- Admitted
- 2023 · First Department
- Status
- Currently registered
- Next registration
- Apr 2027
Michael P Heinz is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 2023 in the First Department, with an office in New York, NY; next registration due Apr 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 Michael P Heinz has filed the biennial registration the court system requires; the next one is due in Apr 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
799 other attorneys list Sidley Austin LLP or one of its other names as their employer on the register; 585 of them were admitted before 2023, and 533 of the 800 give an office in New York, NY. The 5 whose admission is closest to 2023, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Arthur Emiliandre Adler | 2023 | Currently registered |
| Panagiotis Apostolidis | 2023 | Currently registered |
| James Henry Bambury | 2023 | Currently registered |
| Sarah Alexandra Thorp Bieler | 2023 | Currently registered |
| Sophia Ann Blake | 2023 | 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
Michael P Heinz studied at Georgetown University Law Center. 2,114 of its 11,562 living graduates on the register were admitted in the 2020s, as Michael P Heinz was.
- Same law school
- 11,562living graduates; 87.9% 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, 81,173 were admitted before 2023 and 8,718 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, 585 of the others admitted before 2023; 533 of the 800 give an office in New York, NY.
- Georgetown University Law Center graduates on the register11,562 living, 87.9% registered; 54 of them list Sidley Austin LLP.
- 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 20238,985 people admitted in 2023 are on the register, 2,775 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 Michael P Heinz’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 Michael P Heinz in 2023. 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).