Isaac B. Rosen
On the New York attorney register since 2021 · office in Melville, NY
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 5843057
- Admitted
- 2021 · Second Department
- Status
- Currently registered
- Next registration
- Oct 2027
Isaac B. Rosen is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 2021 in the Second Department, with an office in Melville, NY; next registration due Oct 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 Isaac B. Rosen has filed the biennial registration the court system requires; the next one is due in Oct 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
16 other attorneys list Lydecker LLP or one of its other names as their employer on the register; 11 of them were admitted before 2021, and 4 of the 17 give an office in Melville, NY. The 5 whose admission is closest to 2021, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Michelle Diverio | 2020 | Currently registered |
| Morgan Taylor Gieser | 2020 | Currently registered |
| Ralph Joseph | 2020 | Currently registered |
| Cuiyun Li | 2021 | Currently registered |
| Dominika Peko | 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
Isaac B. Rosen studied at Elisabeth Haub School of Law at Pace University (the register spells it “Pace Law School”). 1,067 of its 8,033 living graduates on the register were admitted in the 2020s, as Isaac B. Rosen was.
- Same law school
- 8,033living graduates; 90.0% registered (current or due), against 87.1% overall
- Office in Melville, NY
- 1,478living registrants
Of the 1,478 living registrants with an office in Melville, NY, 1,343 were admitted before 2021 and 104 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 Lydecker LLP17 on the register, 11 of the others admitted before 2021; 4 of the 17 give an office in Melville, NY.
- Elisabeth Haub School of Law at Pace University graduates on the register8,033 living, 90.0% registered.
- Attorneys with an office in Melville, NY1,478 living registrants give an office there.
- Suffolk County’s registered bar5,823 currently registered, 3.81 per 1,000 residents.
- Admitted in 20217,829 people admitted in 2021 are on the register, 2,126 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 Isaac B. Rosen’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 Isaac B. Rosen in 2021. A complaint about this attorney would go to the Second Department’s Grievance Committee for the Tenth Judicial District, which covers Suffolk 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).