New York attorney record · Judicial Dept 2
Jon Karl Lieberman
St Johns University alumna, admitted to the New York bar in 1974, 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.
- 1974
- Admitted
- 52
- Years in bar
- 1566991
- NY reg #
The record in one line
Jon Karl Lieberman has spent 52 years on the register since admission in 1974, one of the longest-standing active practitioners the state bar carries at 96% tenure percentile.
- 52 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #196 of 7,282
- by tenure in Brooklyn office peers
- Law school
- St Johns University
Data updated September 2026
What this profile tells you
Bar status & tenure
Jon Karl Lieberman has carried New York bar registration 1566991 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 Jon K Lieberman Esq, located in Brooklyn, NY (Kings County), ZIP 11229. Educational background: ST JOHNS UNIVERSITY.
State context & due diligence
Across a career spanning 52 years, Jon Karl Lieberman 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
Jon Karl Lieberman's 52 years since a 1974 admission places this record near the far edge of the statewide tenure curve below.
52 years on the New York bar
Years since admission, all currently-active NY attorneys
52 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 · September 2026
Tenure among Brooklyn, NY office peers
Jon Karl Lieberman is earlier in the Brooklyn, NY office cohort than most peers: local tenure rank #196 of 7,282 (3rd percentile). See the Brooklyn attorney directory .
- Local rank
- #196
- City cohort
- 7,282
- Local percentile
- 3rd
- Admitted
- 1974
Nearest tenure peers in Brooklyn
- Bernard Mitchell Alter admitted 1974 · 52 yr
- Robert Bergen admitted 1974 · 52 yr
- Steven David Cohn admitted 1974 · 52 yr
- Charles L. Emma admitted 1974 · 52 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 Jon compares to fellow St Johns University alumni
Among the 3,147 St Johns University graduates in the New York register, Jon Karl Lieberman is longer-tenured than 99%.
52 years vs. St Johns University alumni
Years since admission - 3,147 NY-registered alumni of this school
52 Top 1% higher than 99% 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 1974 admission class today
Of the 2,908 attorneys admitted to the New York bar in 1974, 46.2% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 1566991
- Year Admitted
- 1974 (52 yrs · veteran)
- Judicial Department
- 2
- Next Registration
- Nov 2026
Location & Contact
- Company
- Jon K Lieberman Esq
- City
- Brooklyn, NY
- County
- Kings
- ZIP Code
- 11229
- Phone
- (718) 769-5233
Education
ST JOHNS UNIVERSITY
Status Distribution Across the New York Bar
Jon Karl Lieberman'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 1974 (excluding same-firm colleagues above).
Same admission year (1974), other cities
NY-registered attorneys admitted in 1974 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 Jon Karl Lieberman: 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 (~1974)
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
Jon Karl Lieberman'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 Jon Lieberman licensed?
Jon Lieberman is licensed to practice law in New York.
When was Jon Karl Lieberman admitted to the bar?
Jon Karl Lieberman's admission to the New York bar dates back to 1974.
Where did Jon Karl Lieberman go to law school?
Jon Karl Lieberman attended ST JOHNS UNIVERSITY.
What company does Jon Karl Lieberman work for?
Jon Karl Lieberman is associated with Jon K Lieberman Esq in Brooklyn, NY.
Is Jon Karl Lieberman in good standing?
Yes, Jon Karl Lieberman 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.