Jonathan L. Marks
On the New York attorney register since 2016 · office in Chicago, IL
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 5462874
- Admitted
- 2016 · Third Department
- Status
- Currently registered
- Next registration
- Jan 2028
Jonathan L. Marks is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 2016 in the Third Department, with an office in Chicago, IL; next registration due Jan 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 Jonathan L. Marks has filed the biennial registration the court system requires; the next one is due in Jan 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
240 other attorneys list Katten Muchin Rosenman LLP or one of its other names as their employer on the register; 165 of them were admitted before 2016, and 18 of the 241 give an office in Chicago, IL. The 5 whose admission is closest to 2016, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Nathaniel Caleb Ament-Stone | 2016 | Due to re‑register |
| Alexandra Rose Caleca | 2016 | Due to re‑register |
| Michael James Chiusano | 2016 | Due to re‑register |
| Michael Matthew Howald | 2016 | Currently registered |
| Rebecca H Lomazow | 2016 | 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
Jonathan L. Marks studied at University of Michigan Law School (the register spells it “UNIVERSITY OF MICHIGAN SCHOOL OF LAW”). 1,352 of its 4,806 living graduates on the register were admitted in the 2010s, as Jonathan L. Marks was.
- Same law school
- 4,806living graduates; 86.9% registered (current or due), against 87.1% overall
- Office in Chicago, IL
- 2,265living registrants (outside New York State)
Of the 2,265 living registrants with an office in Chicago, IL, 1,542 were admitted before 2016 and 640 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 Katten Muchin Rosenman LLP241 on the register, 165 of the others admitted before 2016; 18 of the 241 give an office in Chicago, IL.
- University of Michigan Law School graduates on the register4,806 living, 86.9% registered.
- New York-admitted attorneys in Chicago, IL2,265 living registrants give an office there.
- Admitted in 20168,420 people admitted in 2016 are on the register, 3,373 of them through the Third 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 Jonathan L. Marks’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 Jonathan L. Marks in 2016. 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).