Margaret M. Sheahan
On the New York attorney register since 1980 · office in Stratford, CT
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 1698505
- Admitted
- 1980 · First Department
- Status
- Currently registered
- Next registration
- Aug 2028
Margaret M. Sheahan is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 1980 in the First Department, with an office in Stratford, CT; next registration due Aug 2028. Since Jul 3, 2026 it has moved only through the routine two-year cycle.
What this status means on the register
On the register, “Currently registered” means Margaret M. Sheahan has filed the biennial registration the court system requires; the next one is due in Aug 2028.
- Due to re‑register to Currently registered the routine two-year cycle: the registration window closed with a filing
- Due to re‑register unchanged
- Due to re‑register 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
The only other attorney who lists Mitchell, Sheahan & Slippen, P.C. or one of its other names:
| Attorney | Admitted | Status |
|---|---|---|
| Robert Burdette Mitchell | 1979 | 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
Margaret M. Sheahan studied at New York University School of Law (the register spells it “NYU”). 2,911 of its 23,248 living graduates on the register were admitted in the 1980s, as Margaret M. Sheahan was.
- Same law school
- 23,248living graduates; 86.5% registered (current or due), against 87.1% overall
- Office in Stratford, CT
- 34living registrants (outside New York State)
Of the 34 living registrants with an office in Stratford, CT, 3 were admitted before 1980 and 30 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
- New York University School of Law graduates on the register23,248 living, 86.5% registered.
- New York-admitted attorneys in Stratford, CT34 living registrants give an office there.
- Admitted in 19804,659 people admitted in 1980 are on the register, 1,736 of them through the First 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 Margaret M. Sheahan’s standing, contact the Attorney Registration Unit of the NY Office of Court Administration (nycourts.gov/attorneys), or ask the Appellate Division, First Department, which admitted Margaret M. Sheahan in 1980. 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).