New York attorney record · Judicial Dept 2
Dennis Brendan O'Sullivan
Fordham University alumna, admitted to the New York bar in 1999, registered office in Flushing, NY. Decades of status, address, and registration history on this record come straight from the NY Office of Court Administration.
- 1999
- Admitted
- 27
- Years in bar
- 2932200
- NY reg #
The record in one line
With 27 years on the register since a 1999 admission, Dennis Brendan O'Sullivan ranks among the New York bar's most senior active practitioners, longer-tenured than 62% of the currently-active bar.
- 27 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #197 of 595
- by tenure in Flushing office peers
- Law school
- Fordham University
Data updated September 2026
What this profile tells you
Bar status & tenure
Registration 2932200 with the New York bar authority has long belonged to Dennis Brendan O'Sullivan, a veteran practitioner still in active 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 Law Office Of Dennis O'Sullivan, located in Flushing, NY (Queens County), ZIP 11358. Educational background: FORDHAM UNIVERSITY.
State context & due diligence
After 27 years on the register, Dennis Brendan O'Sullivan still falls within the New York bar's active cohort, a share of the register detailed further below.
Experience vs. the active New York bar
Few active New York attorneys match Dennis Brendan O'Sullivan's 27 years since admission in 1999.
27 years on the New York bar
Years since admission, all currently-active NY attorneys
27 Top 38% higher than 62% 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 · September 2026
Tenure among Flushing, NY office peers
Most of the 595 NY-registered attorneys in Flushing, NY outrank Dennis Brendan O'Sullivan on tenure; this record sits at the 33rd local percentile (rank #197). See the Flushing attorney directory .
- Local rank
- #197
- City cohort
- 595
- Local percentile
- 33rd
- Admitted
- 1999
Nearest tenure peers in Flushing
- Jenny C. Ahn admitted 1999 · 27 yr
- Dylan Wen Chan admitted 1999 · 27 yr
- Samuel D. Flatt admitted 1999 · 27 yr
- Susan Antonia Leung admitted 1999 · 27 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 September 2026. Derived local rank, not published upstream.
How Dennis compares to fellow Fordham University alumni
Among the 2,321 Fordham University graduates in the New York register, Dennis Brendan O'Sullivan is longer-tenured than 43%.
27 years vs. Fordham University alumni
Years since admission - 2,321 NY-registered alumni of this school
27 Top 57% higher than 43% of 2,321 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 · September 2026
The 1999 admission class today
Of the 7,628 attorneys admitted to the New York bar in 1999, 81.9% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 2932200
- Year Admitted
- 1999 (27 yrs · veteran)
- Judicial Department
- 2
- Next Registration
- Jan 2027
Location & Contact
- Company
- Law Office Of Dennis O'Sullivan
- City
- Flushing, NY
- County
- Queens
- ZIP Code
- 11358
- Phone
- (833) 672-5222
Education
FORDHAM UNIVERSITY
Status Distribution Across the New York Bar
Dennis Brendan O'Sullivan'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 Fordham University alumni
Fellow alumni on the NY register whose admission year is closest to 1999 (excluding same-firm colleagues above).
Same admission year (1999), other cities
NY-registered attorneys admitted in 1999 whose listed office city differs from Flushing, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Dennis Brendan O'Sullivan: closest NY bar admission year outside NY, and closest out-of-state office cities by how many NY-registered attorneys they list (~596 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~1999)
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
Dennis Brendan O'Sullivan'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 Dennis O'Sullivan licensed?
Dennis O'Sullivan is licensed to practice law in New York.
When was Dennis Brendan O'Sullivan admitted to the bar?
Dennis Brendan O'Sullivan's admission to the New York bar dates back to 1999.
Where did Dennis Brendan O'Sullivan go to law school?
Dennis Brendan O'Sullivan attended FORDHAM UNIVERSITY.
What company does Dennis Brendan O'Sullivan work for?
Dennis Brendan O'Sullivan is associated with Law Office Of Dennis O'Sullivan in Flushing, NY.
Is Dennis Brendan O'Sullivan in good standing?
Yes, Dennis Brendan O'Sullivan 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.