New York attorney record · Judicial Dept 2
John Thomas Brennan
University Of Tennessee alumna, admitted to the New York bar in 1975, registered office in White Plains, NY. A half-lifetime's worth of status, address, and registration history on this record come straight from the NY Office of Court Administration.
- 1975
- Admitted
- 51
- Years in bar
- 1558857
- NY reg #
The record in one line
John Thomas Brennan has spent 51 years on the register since admission in 1975, one of the longest-standing active practitioners the state bar carries at 96% tenure percentile.
- 51 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #157 of 3,330
- by tenure in White Plains office peers
- Law school
- University Of Tennessee
Data updated August 2026
What this profile tells you
Bar status & tenure
John Thomas Brennan has carried New York bar registration 1558857 for the better part of a career, still active and in good standing. Registration is recorded within Judicial Department 2, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Henderson And Brennan, located in White Plains, NY (Westchester County), ZIP 10605. Educational background: UNIVERSITY OF TENNESSEE (54 registered alumni).
State context & due diligence
Across a career spanning 51 years, John Thomas Brennan has remained part of the New York bar's active cohort, a share of the register detailed further below.
Experience vs. the active New York bar
John Thomas Brennan's 51 years since a 1975 admission places this record near the far edge of the statewide tenure curve below.
51 years on the New York bar
Years since admission, all currently-active NY attorneys
51 Top 4% higher than 96% of 290,787 active NY attorneys
Each bar is a band; taller bars hold more active NY attorneys. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · August 2026
Tenure among White Plains, NY office peers
John Thomas Brennan is earlier in the White Plains, NY office cohort than most peers: local tenure rank #157 of 3,330 (5th percentile). See the White Plains attorney directory .
- Local rank
- #157
- City cohort
- 3,330
- Local percentile
- 5th
- Admitted
- 1975
Nearest tenure peers in White Plains
- Vincent J. Aceste admitted 1975 · 51 yr
- Joseph Aronauer admitted 1975 · 51 yr
- Ronald Joseph Bavero admitted 1975 · 51 yr
- Marc A. Bergman admitted 1975 · 51 yr
How local rank is computed
Rank uses years since NY-bar admission among non-deceased registry rows that list the same office city and state, a local placement, not a statewide claim. Source: NY Office of Court Administration Attorney Registration · as of August 2026. Derived local rank, not published upstream.
How John compares to fellow University Of Tennessee alumni
Among the 52 University Of Tennessee graduates in the New York register, John Thomas Brennan is longer-tenured than 79%.
51 years vs. University Of Tennessee alumni
Years since admission - 52 NY-registered alumni of this school
51 Top 21% higher than 79% of 52 fellow alumni
Each bar is a band; taller bars hold more fellow alumni. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NY Office of Court Administration, Attorney Registration · August 2026
University Of Tennessee's active-bar rate
Of University Of Tennessee's 54 alumni in the New York register, 61.1% currently hold "Currently registered" status, below the statewide average.
The 1975 admission class today
Of the 3,195 attorneys admitted to the New York bar in 1975, 47.1% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 1558857
- Year Admitted
- 1975 (51 yrs · veteran)
- Judicial Department
- 2
- Next Registration
- Jun 2028
Location & Contact
- Company
- Henderson And Brennan
- City
- White Plains, NY
- County
- Westchester
- ZIP Code
- 10605
- Phone
- (914) 761-2700
Education
Status Distribution Across the New York Bar
John Thomas Brennan's current status, "Currently registered", places this attorney in the 67.2% of the 432,625-attorney New York register currently marked active.
Full statewide breakdown & source note
Source: NY Office of Court Administration, Attorney Registrations. Status counts reflect the latest reporting cycle. Bar status confirms registration only; it does not imply competence, specialty fit, or freedom from complaints.
Near-tenure University Of Tennessee alumni
Fellow alumni on the NY register whose admission year is closest to 1975 (excluding same-firm colleagues above).
Same admission year (1975), other cities
NY-registered attorneys admitted in 1975 whose listed office city differs from White Plains, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for John Thomas Brennan: closest NY bar admission year outside NY, and closest out-of-state office cities by how many NY-registered attorneys they list (~3,331 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~1975)
Counts come from the NY State Office of Court Administration registration extract; peers are not a competence or practice-area ranking.
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Compare attorneys →Before you rely on this record
John Thomas Brennan's "Currently registered" listing confirms bar standing only, it is a registration fact to verify, not a verdict on quality or competence.
Frequently Asked Questions
Where is John Brennan licensed?
John Brennan is licensed to practice law in New York.
When was John Thomas Brennan admitted to the bar?
John Thomas Brennan's admission to the New York bar dates back to 1975.
Where did John Thomas Brennan go to law school?
John Thomas Brennan attended UNIVERSITY OF TENNESSEE.
What company does John Thomas Brennan work for?
John Thomas Brennan is associated with Henderson And Brennan in White Plains, NY.
Is John Thomas Brennan in good standing?
Yes, John Thomas Brennan holds active bar status ("Currently registered").
Cite this page & disclosure
Sourced from the NY Office of Court Administration, informational only, not legal advice. Full disclosure.
Read our methodology - how this data is sourced, computed, and verified.