New York attorney record · Judicial Dept 4
Leslie Mark Greenbaum
State Univ Of Ny At Buffa alumna, admitted to the New York bar in 1974, registered office in Buffalo, 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
- 1636968
- NY reg #
The record in one line
Leslie Mark Greenbaum 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"
- #84 of 3,464
- by tenure in Buffalo office peers
- Law school
- State Univ Of Ny At Buffa
Data updated September 2026
What this profile tells you
Bar status & tenure
Leslie Mark Greenbaum has carried New York bar registration 1636968 for the better part of a career, still active and in good standing. Registration is recorded within Judicial Department 4, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Gross Shuman P.C., located in Buffalo, NY (Erie County), ZIP 14203. 5 other attorneys share this firm affiliation in the registry. Educational background: STATE UNIV OF NY AT BUFFA (5 registered alumni).
State context & due diligence
Across a career spanning 52 years, Leslie Mark Greenbaum 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
Leslie Mark Greenbaum'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 Buffalo, NY office peers
Leslie Mark Greenbaum is earlier in the Buffalo, NY office cohort than most peers: local tenure rank #84 of 3,464 (2nd percentile). See the Buffalo attorney directory .
- Local rank
- #84
- City cohort
- 3,464
- Local percentile
- 2nd
- Admitted
- 1974
Nearest tenure peers in Buffalo
- George Anthony Berbary admitted 1974 · 52 yr
- Michael Bruce Berger admitted 1974 · 52 yr
- Richard Geoffrey Berger admitted 1974 · 52 yr
- William K. Buscaglia Jr. 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.
State Univ Of Ny At Buffa's active-bar rate
Of State Univ Of Ny At Buffa's 5 alumni in the New York register, 60% currently hold "Currently registered" status, below the statewide average.
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
- 1636968
- Year Admitted
- 1974 (52 yrs · veteran)
- Judicial Department
- 4
- Next Registration
- Mar 2028
Location & Contact
- Company
- Gross Shuman P.C.
- City
- Buffalo, NY
- County
- Erie
- ZIP Code
- 14203
- Phone
- (716) 854-4300
Education
Status Distribution Across the New York Bar
Leslie Mark Greenbaum'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.
Same firm affiliation: Gross Shuman P.C.
Other NY-registered attorneys who share this firm name on the OCA register (not a geographic peer set).
Same admission year (1974), other cities
NY-registered attorneys admitted in 1974 whose listed office city differs from Buffalo, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Leslie Mark Greenbaum: closest NY bar admission year outside NY, and closest out-of-state office cities by how many NY-registered attorneys they list (~3,465 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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Leslie Mark Greenbaum'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 Leslie Greenbaum licensed?
Leslie Greenbaum is licensed to practice law in New York.
When was Leslie Mark Greenbaum admitted to the bar?
Leslie Mark Greenbaum's admission to the New York bar dates back to 1974.
Where did Leslie Mark Greenbaum go to law school?
Leslie Mark Greenbaum attended STATE UNIV OF NY AT BUFFA.
What company does Leslie Mark Greenbaum work for?
Leslie Mark Greenbaum is associated with Gross Shuman P.C. in Buffalo, NY.
Is Leslie Mark Greenbaum in good standing?
Yes, Leslie Mark Greenbaum 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.