Jacob R Leiken
On the New York attorney register since 2026 · office in New York, NY
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 6273122
- Admitted
- 2026 · Second Department
- Status
- Currently registered
- Next registration
- Jun 2028
Jacob R Leiken is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 2026 in the Second Department, with an office in New York, NY; next registration due Jun 2028. The status is the same in all 3 files we hold.
What this status means on the register
On the register, “Currently registered” means Jacob R Leiken has filed the biennial registration the court system requires; the next one is due in Jun 2028.
- 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
20 other attorneys list Hausfeld LLP or one of its other names as their employer on the register; 18 of them were admitted before 2026, and 12 of the 21 give an office in New York, NY. The 5 whose admission is closest to 2026, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Kyle Geoffrey Bates | 2024 | Currently registered |
| Lisandra Aguiar | 2025 | Currently registered |
| Shayla Janelle Harris | 2025 | Currently registered |
| William Hayden Dwyer | 2026 | Currently registered |
| Tyheem Parrott-Johnson | 2026 | 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
Jacob R Leiken studied at New York University School of Law. 3,423 of its 23,248 living graduates on the register were admitted in the 2020s, as Jacob R Leiken 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, 91,608 were admitted before 2026 and 0 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 Hausfeld LLP21 on the register, 18 of the others admitted before 2026; 12 of the 21 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 20266,220 people admitted in 2026 are on the register, 1,274 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 Jacob R Leiken’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 Jacob R Leiken in 2026. 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).