New York attorney record · Judicial Dept 2
Dennis P. Mcmahon
Western New England & Nyu alumna, admitted to the New York bar in 1982, registered office in Brooklyn, NY. A half-lifetime's worth of status, address, and registration history on this record come straight from the NY Office of Court Administration.
- 1982
- Admitted
- 44
- Years in bar
- 1830421
- NY reg #
The record in one line
Dennis P. Mcmahon carries a "Delinquent" status on the New York bar register, on record since 1982 - confirm the exact standing and any discipline history directly with the state bar before engaging.
- 44 yrs
- since first admission to the bar
- Suspended
- current bar status: "Delinquent"
- #672 of 7,282
- by tenure in Brooklyn office peers
- Law school
- Western New England & Nyu
Data updated September 2026
What this profile tells you
Bar status & tenure
Dennis P. Mcmahon is registered as bar number 1830421 with the New York bar authority, carrying a current status of "Delinquent", suspended or delinquent, verify terms with the bar before engaging. Registration is recorded within Judicial Department 2, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Dennis P. Mcmahon, Attorney At Law, located in Brooklyn, NY (Kings County), ZIP 11229. Educational background: WESTERN NEW ENGLAND & NYU.
State context & due diligence
A "Delinquent" status falls outside the New York bar's active cohort. The breakdown below shows what share of the register that represents, and how to verify current standing directly with the state bar.
Tenure among Brooklyn, NY office peers
Dennis P. Mcmahon is earlier in the Brooklyn, NY office cohort than most peers: local tenure rank #672 of 7,282 (9th percentile). See the Brooklyn attorney directory .
- Local rank
- #672
- City cohort
- 7,282
- Local percentile
- 9th
- Admitted
- 1982
Nearest tenure peers in Brooklyn
- Curtis Craig Arnel admitted 1982 · 44 yr
- Alan Beckoff admitted 1982 · 44 yr
- Leon J. Bijou admitted 1982 · 44 yr
- Robert V. Blau admitted 1982 · 44 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.
The 1982 admission class today
Of the 5,181 attorneys admitted to the New York bar in 1982, 52.7% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Delinquent
- Registration Number
- 1830421
- Year Admitted
- 1982 (44 yrs · veteran)
- Judicial Department
- 2
- Next Registration
- Oct 2026
Location & Contact
- Company
- Dennis P. Mcmahon, Attorney At Law
- City
- Brooklyn, NY
- County
- Kings
- ZIP Code
- 11229
- Phone
- (917) 597-7781
Education
WESTERN NEW ENGLAND & NYU
Status Distribution Across the New York Bar
Dennis P. Mcmahon's current status, "Delinquent", places this record outside 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.
Same admission year (1982), other cities
NY-registered attorneys admitted in 1982 whose listed office city differs from Brooklyn, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Dennis P. Mcmahon: closest NY bar admission year outside NY, and closest out-of-state office cities by how many NY-registered attorneys they list (~7,283 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~1982)
Counts come from the NY State Office of Court Administration registration extract; peers are not a competence or practice-area ranking.
Verify This Attorney
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Compare attorneys →Before you rely on this record
Dennis P. Mcmahon carries a "Delinquent" status. Verify the exact scope and dates of this action directly with the state bar before acting on it.
Frequently Asked Questions
Where is Dennis Mcmahon licensed?
Dennis Mcmahon is licensed to practice law in New York.
When was Dennis P. Mcmahon admitted to the bar?
Dennis P. Mcmahon's admission to the New York bar dates back to 1982.
Where did Dennis P. Mcmahon go to law school?
Dennis P. Mcmahon attended WESTERN NEW ENGLAND & NYU.
What company does Dennis P. Mcmahon work for?
Dennis P. Mcmahon is associated with Dennis P. Mcmahon, Attorney At Law in Brooklyn, NY.
Is Dennis P. Mcmahon in good standing?
No, Dennis P. Mcmahon carries a "Delinquent" status, not active standing. Confirm the exact scope directly with the state bar before engaging.
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.