Kathryn Der Seen
On the New York attorney register since 2022 · office in Washington, DC
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 5954540
- Admitted
- 2022 · Third Department
- Status
- Currently registered
- Next registration
- Dec 2026
Kathryn Der Seen is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 2022 in the Third Department, with an office in Washington, DC; next registration due Dec 2026. The status is the same in all 3 files we hold.
What this status means on the register
On the register, “Currently registered” means Kathryn Der Seen has filed the biennial registration the court system requires; the next one is due in Dec 2026.
- 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
7 other attorneys list Amis, Patel & Brewer, LLP or one of its other names as their employer on the register; 6 of them were admitted before 2022, and all 8 give an office in Washington, DC. The 5 whose admission is closest to 2022, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Melissa Anne Boudreau | 2014 | Currently registered |
| Molly Louise Feiden | 2016 | Due to re‑register |
| Christa Lee Maiorano | 2017 | Currently registered |
| Nathan A. Bishop | 2019 | Currently registered |
| Xinyi Li | 2024 | 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
Kathryn Der Seen studied at Boston University School of Law. 606 of its 6,362 living graduates on the register were admitted in the 2020s, as Kathryn Der Seen was.
- Same law school
- 6,362living graduates; 86.6% registered (current or due), against 87.1% overall
- Office in Washington, DC
- 12,527living registrants (outside New York State)
Of the 12,527 living registrants with an office in Washington, DC, 11,594 were admitted before 2022 and 667 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
- Boston University School of Law graduates on the register6,362 living, 86.6% registered.
- New York-admitted attorneys in Washington, DC12,527 living registrants give an office there.
- Admitted in 20227,736 people admitted in 2022 are on the register, 3,662 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 Kathryn Der Seen’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 Kathryn Der Seen in 2022. 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).