John Thomas Brennan
On the New York attorney register since 1975 · office in White Plains, NY
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 1558857
- Admitted
- 1975 · Second Department
- Status
- Currently registered
- Next registration
- Jun 2028
John Thomas Brennan is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 1975 in the Second Department, with an office in White Plains, NY; next registration due Jun 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 John Thomas Brennan has filed the biennial registration the court system requires; the next one is due in Jun 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
The only other attorney who lists Henderson and Brennan or one of its other names:
| Attorney | Admitted | Status |
|---|---|---|
| Lauren Jill Demase | 1993 | 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
John Thomas Brennan studied at University of Tennessee College of Law (the register spells it “UNIVERSITY OF TENNESSEE”). 15 of its 136 living graduates on the register were admitted in the 1970s, as John Thomas Brennan was.
- Same law school
- 136living graduates; 88.2% registered (current or due), against 87.1% overall
- Office in White Plains, NY
- 3,313living registrants
Of the 3,313 living registrants with an office in White Plains, NY, 154 were admitted before 1975 and 3,127 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
- University of Tennessee College of Law graduates on the register136 living, 88.2% registered.
- Attorneys with an office in White Plains, NY3,313 living registrants give an office there.
- Westchester County’s registered bar7,255 currently registered, 7.26 per 1,000 residents.
- Admitted in 19753,195 people admitted in 1975 are on the register, 1,443 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 John Thomas Brennan’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 John Thomas Brennan in 1975. A complaint about this attorney would go to the Second Department’s Grievance Committee for the Ninth Judicial District, which covers Westchester 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).