Andrew Michael Katzenstein
On the New York attorney register since 1990 · office in Los Angeles, CA
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 2376614
- Admitted
- 1990 · Third Department
- Status
- Suspended, delinquent
- Next registration
- Oct 2026
Andrew Michael Katzenstein is suspended, delinquent on the New York attorney register file of Sep 29, 2026. Admitted in 1990 in the Third Department, with an office in Los Angeles, CA; next registration due Oct 2026. The status is the same in all 3 files we hold.
What this status means on the register
On the register, “Suspended, delinquent” means the attorney is recorded as suspended from practice, with the registration also delinquent. The register does not give the reason or date of a suspension; the Appellate Division’s order does.
- Suspended, delinquent unchanged
- Suspended, delinquent unchanged
- Suspended, delinquent 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
517 other attorneys list Proskauer Rose LLP or one of its other names as their employer on the register; 60 of them were admitted before 1990, and 22 of the 518 give an office in Los Angeles, CA. The 5 whose admission is closest to 1990, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Neil Howard Abramson | 1989 | Currently registered |
| Margaret Antinori Dale | 1990 | Currently registered |
| Margaret Joann Babb | 1991 | Suspended, delinquent |
| Ira Glen Bogner | 1991 | Currently registered |
| Roberta Karen Chevlowe | 1991 | 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
Andrew Michael Katzenstein studied at University of Michigan Law School (the register spells it “UNIVERSITY MICHIGAN”). 655 of its 4,806 living graduates on the register were admitted in the 1990s, as Andrew Michael Katzenstein was.
- Same law school
- 4,806living graduates; 86.9% registered (current or due), against 87.1% overall
- Office in Los Angeles, CA
- 2,891living registrants (outside New York State)
Of the 2,891 living registrants with an office in Los Angeles, CA, 387 were admitted before 1990 and 2,476 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 Proskauer Rose LLP518 on the register, 60 of the others admitted before 1990; 22 of the 518 give an office in Los Angeles, CA.
- University of Michigan Law School graduates on the register4,806 living, 86.9% registered.
- New York-admitted attorneys in Los Angeles, CA2,891 living registrants give an office there.
- Admitted in 19906,112 people admitted in 1990 are on the register, 1,298 of them through the Third Department.
- Every registration that reads “Suspended, delinquent”20,229 on the register file of Sep 29, 2026, by decade of admission.
- How to complain about a New York lawyerThe grievance committee for each county, and what it can do.
How to confirm it officially
For a statement of Andrew Michael Katzenstein’s standing, contact the Attorney Registration Unit of the NY Office of Court Administration (nycourts.gov/attorneys), or ask the Appellate Division, Third Department, which admitted Andrew Michael Katzenstein in 1990. The register places the office outside New York, so a complaint would go to that department’s grievance committee (22 NYCRR 1240.7(a)(2)).
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).