Leah Marie Kopco
On the New York attorney register since 2008 · office in Washington, DC
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 4603080
- Admitted
- 2008 · First Department
- Status
- Currently registered
- Next registration
- Apr 2028
Leah Marie Kopco is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 2008 in the First Department, with an office in Washington, DC; next registration due Apr 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 the attorney has filed the biennial registration the court system requires; the next one is due in the month shown. How many hold this status.
- Currently registered unchanged
- Currently registered unchanged
- Currently registered the first file we hold
We show the 3 register files of the last twelve months (Jul 3, 2026, Aug 6, 2026, Sep 29, 2026). A change of standing between them is struck through in red; the routine birthday cycle is not.
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. The 5 whose admission is closest to 2008, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Peter Morrison Doyle Jr. | 2008 | Currently registered |
| Elizabeth Kronick Kleinman | 2008 | Currently registered |
| Nathaniel Wright Lalone | 2008 | Currently registered |
| Ilana Nicole Lubin | 2008 | Currently registered |
| Jonathan A. Rotenberg | 2008 | 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
Leah Marie Kopco studied at George Washington University Law School.
- Same law school
- 6,333living graduates; 88.8% registered (current or due), against 87.1% overall
- Office in Washington, DC
- 12,527living registrants give an office there (outside New York State)
Source: NY Office of Court Administration, attorney registration file (data.ny.gov, dataset eqw2-r5nb), downloaded Sep 29, 2026; living registrants only.
How to confirm it officially
The register is published by the court system; PlainAttorney shows it as released. For a statement of an attorney’s standing, contact the Attorney Registration Unit of the NY Office of Court Administration (nycourts.gov/attorneys), or ask the Appellate Division in the attorney’s department. The register places the office outside New York, so a complaint would go to the grievance committee of the First Department, which admitted this attorney (22 NYCRR 1240.7(a)(2)).
This page reads the register file of Sep 29, 2026; the court system publishes the file every few weeks, so its own search can be newer. The register shows only the current value: a suspension that ended before the files we hold, or discipline short of suspension such as a censure, leaves no trace here. Appellate Division decisions on attorney discipline are published in the New York Official Reports, online through the court system’s Law Reporting Bureau.