Sean Michael Costigan
On the New York attorney register since 2014 · office in East Meadow, NY
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 5223144
- Admitted
- 2014 · Second Department
- Status
- Currently registered
- Next registration
- Dec 2026
Sean Michael Costigan is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 2014 in the Second Department, with an office in East Meadow, NY; 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 Sean Michael Costigan 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
18 other attorneys list Brand, Glick & Brand P.C. or one of its other names as their employer on the register; 13 of them were admitted before 2014, and 18 of the 19 give an office in East Meadow, NY. The 5 whose admission is closest to 2014, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Kerry Beth Fisher | 2013 | Currently registered |
| Janine Marie Perrone | 2013 | Currently registered |
| Peter Creighton Reitano | 2015 | Currently registered |
| James Patrick Mercurio | 2018 | Due to re‑register |
| Matthew Eric Feigenbaum | 2022 | 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
Sean Michael Costigan studied at Touro University Jacob D. Fuchsberg Law Center. 1,675 of its 6,308 living graduates on the register were admitted in the 2010s, as Sean Michael Costigan was.
- Same law school
- 6,308living graduates; 92.5% registered (current or due), against 87.1% overall
- Office in East Meadow, NY
- 223living registrants
Of the 223 living registrants with an office in East Meadow, NY, 170 were admitted before 2014 and 47 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 Brand, Glick & Brand P.C.19 on the register, 13 of the others admitted before 2014; 18 of the 19 give an office in East Meadow, NY.
- Touro University Jacob D. Fuchsberg Law Center graduates on the register6,308 living, 92.5% registered.
- Attorneys with an office in East Meadow, NY223 living registrants give an office there.
- Nassau County’s registered bar9,622 currently registered, 6.92 per 1,000 residents.
- Admitted in 201410,747 people admitted in 2014 are on the register, 2,930 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 Sean Michael Costigan’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 Sean Michael Costigan in 2014. A complaint about this attorney would go to the Second Department’s Grievance Committee for the Tenth Judicial District, which covers Nassau 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).