New York attorney record · Judicial Dept 1
Leon Irwin Jacobson
Harvard alumna, admitted to the New York bar in 1968, registered office in New York, NY. A half-lifetime's worth of status, address, and registration history on this record come straight from the NY Office of Court Administration.
- 1968
- Admitted
- 58
- Years in bar
- 1116581
- NY reg #
The record in one line
Leon Irwin Jacobson appears in the New York attorney register with a current status of "Due to reregister within 30 days of birthday", on record since 1968 - an administrative designation rather than discipline, but confirm current standing with the state bar.
- 58 yrs
- since first admission to the bar
- Pending-renewal
- current bar status: "Due to reregister within 30 days of birthday"
- #901 of 93,608
- by tenure in New York office peers
- Law school
- Harvard
Data updated August 2026
What this profile tells you
Bar status & tenure
Leon Irwin Jacobson is registered as bar number 1116581 with the New York bar authority, carrying a current status of "Due to reregister within 30 days of birthday", a routine periodic-renewal reminder, not discipline. Registration is recorded within Judicial Department 1, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Jacobson, Mermelstein & Squire, LLP, located in New York, NY (New York County), ZIP 10023. Educational background: HARVARD (7,182 registered alumni).
State context & due diligence
A "Due to reregister within 30 days of birthday" status falls outside the New York bar's active cohort for now. The breakdown below shows what share of the register that represents.
Tenure among New York, NY office peers
Leon Irwin Jacobson is earlier in the New York, NY office cohort than most peers: local tenure rank #901 of 93,608 (1st percentile). See the New York attorney directory .
- Local rank
- #901
- City cohort
- 93,608
- Local percentile
- 1st
- Admitted
- 1968
Nearest tenure peers in New York
- Richard C. Agins admitted 1968 · 58 yr
- Jon C. Aimone admitted 1968 · 58 yr
- Martin Bennett Amdur admitted 1968 · 58 yr
- Gerald Harold Baker admitted 1968 · 58 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 Leon compares to fellow Harvard alumni
Among the 3,045 Harvard graduates in the New York register, Leon Irwin Jacobson is longer-tenured than 99%.
58 years vs. Harvard alumni
Years since admission - 3,045 NY-registered alumni of this school
58 Top 1% higher than 99% of 3,045 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
Harvard's active-bar rate
Of Harvard's 7,182 alumni in the New York register, 50% currently hold "Currently registered" status, below the statewide average.
The 1968 admission class today
Of the 1,871 attorneys admitted to the New York bar in 1968, 31.6% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Due to reregister within 30 days of birthday
- Registration Number
- 1116581
- Year Admitted
- 1968 (58 yrs · veteran)
- Judicial Department
- 1
- Next Registration
- Apr 2026
Location & Contact
- Company
- Jacobson, Mermelstein & Squire, LLP
- City
- New York, NY
- County
- New York
- ZIP Code
- 10023
- Phone
- (212) 697-1420
Education
Status Distribution Across the New York Bar
Leon Irwin Jacobson's current status, "Due to reregister within 30 days of birthday", 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.
Near-tenure Harvard alumni
Fellow alumni on the NY register whose admission year is closest to 1968 (excluding same-firm colleagues above).
Same admission year (1968), other cities
NY-registered attorneys admitted in 1968 whose listed office city differs from New York, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Leon Irwin Jacobson: closest NY bar admission year outside NY, and closest out-of-state office cities by how many NY-registered attorneys they list (~93,609 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~1968)
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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Leon Irwin Jacobson is currently listed as "Due to reregister within 30 days of birthday", treat that as a registration fact to confirm, not a verdict on quality.
Frequently Asked Questions
Where is Leon Jacobson licensed?
Leon Jacobson is licensed to practice law in New York.
When was Leon Irwin Jacobson admitted to the bar?
Leon Irwin Jacobson's admission to the New York bar dates back to 1968.
Where did Leon Irwin Jacobson go to law school?
Leon Irwin Jacobson attended HARVARD.
What company does Leon Irwin Jacobson work for?
Leon Irwin Jacobson is associated with Jacobson, Mermelstein & Squire, LLP in New York, NY.
Is Leon Irwin Jacobson in good standing?
Not currently, Leon Irwin Jacobson's listed status is "Due to reregister within 30 days of birthday", not active standing. Confirm current status with the state bar.
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.