New York attorney record · Judicial Dept 2
Kenneth P. Mahon
St Johns University alumna, admitted to the New York bar in 1986, registered office in Garden City South, NY. A half-lifetime's worth of status, address, and registration history on this record come straight from the NY Office of Court Administration.
- 1986
- Admitted
- 40
- Years in bar
- 2086320
- NY reg #
The record in one line
Kenneth P. Mahon has spent 40 years on the register since admission in 1986, one of the longest-standing active practitioners the state bar carries at 86% tenure percentile.
- 40 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #4 of 10
- by tenure in Garden City South office peers
- Law school
- St Johns University
Data updated September 2026
What this profile tells you
Bar status & tenure
Kenneth P. Mahon has carried New York bar registration 2086320 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 Mahon, Mahon, Kerins & Obrien LLC, located in Garden City South, NY (Nassau County), ZIP 11530. Educational background: ST JOHNS UNIVERSITY.
State context & due diligence
Across a career spanning 40 years, Kenneth P. Mahon 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
Kenneth P. Mahon's 40 years since a 1986 admission places this record near the far edge of the statewide tenure curve below.
40 years on the New York bar
Years since admission, all currently-active NY attorneys
40 Top 14% higher than 86% 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 Garden City South, NY office peers
Within Garden City South, NY's 10-attorney local set, Kenneth P. Mahon is #4 by tenure, a small-cohort read, not a statewide claim. See the Garden City South attorney directory .
- Local rank
- #4
- City cohort
- 10
- Local percentile
- 30th
- Admitted
- 1986
Nearest tenure peers in Garden City South
- Lawrence T. Mahon admitted 1986 · 40 yr
- Beth Alice Swendsen-Dowd admitted 1990 · 36 yr
- Gregory Vetter admitted 1990 · 36 yr
- Michael N. Balsamo admitted 1979 · 47 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 Kenneth compares to fellow St Johns University alumni
Among the 3,147 St Johns University graduates in the New York register, Kenneth P. Mahon is longer-tenured than 58%.
40 years vs. St Johns University alumni
Years since admission - 3,147 NY-registered alumni of this school
40 Top 42% higher than 58% of 3,147 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 1986 admission class today
Of the 6,111 attorneys admitted to the New York bar in 1986, 57.1% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 2086320
- Year Admitted
- 1986 (40 yrs · veteran)
- Judicial Department
- 2
- Next Registration
- Oct 2026
Location & Contact
- Company
- Mahon, Mahon, Kerins & Obrien LLC
- County
- Nassau
- ZIP Code
- 11530
- Phone
- (516) 538-1111
Education
ST JOHNS UNIVERSITY
Status Distribution Across the New York Bar
Kenneth P. Mahon'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 St Johns University alumni
Fellow alumni on the NY register whose admission year is closest to 1986 (excluding same-firm colleagues above).
Same admission year (1986), other cities
NY-registered attorneys admitted in 1986 whose listed office city differs from Garden City South, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Kenneth P. Mahon: closest NY bar admission year outside NY, and closest out-of-state office cities by how many NY-registered attorneys they list (~11 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~1986)
Counts come from the NY State Office of Court Administration registration extract; peers are not a competence or practice-area ranking.
Verify This Attorney
Verify on NY Courts Attorney SearchNearby Attorneys in Garden City South, NY
Compare credentials side-by-side
Compare Kenneth P. Mahon with similar attorneys in Garden City South.
Compare attorneys →Before you rely on this record
Kenneth P. Mahon'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 Kenneth Mahon licensed?
Kenneth Mahon is licensed to practice law in New York.
When was Kenneth P. Mahon admitted to the bar?
Kenneth P. Mahon's admission to the New York bar dates back to 1986.
Where did Kenneth P. Mahon go to law school?
Kenneth P. Mahon attended ST JOHNS UNIVERSITY.
What company does Kenneth P. Mahon work for?
Kenneth P. Mahon is associated with Mahon, Mahon, Kerins & Obrien LLC in Garden City South, NY.
Is Kenneth P. Mahon in good standing?
Yes, Kenneth P. Mahon 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.