New York attorney record · Judicial Dept 1
Markham Richard Leventhal
Seton Hall Univ alumna, admitted to the New York bar in 1986, registered office in Miami, FL. 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
- 2070399
- NY reg #
The record in one line
Markham Richard Leventhal 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"
- #125 of 1,564
- by tenure in Miami office peers
- Law school
- Seton Hall Univ
Data updated September 2026
What this profile tells you
Bar status & tenure
Markham Richard Leventhal has carried New York bar registration 2070399 for the better part of a career, still active and in good standing. Registration is recorded within Judicial Department 1, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Attorney, located in Miami, FL, ZIP 33136. 5 other attorneys share this firm affiliation in the registry. Educational background: SETON HALL UNIV.
State context & due diligence
Across a career spanning 40 years, Markham Richard Leventhal 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
Markham Richard Leventhal'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 Miami, FL office peers
Markham Richard Leventhal is earlier in the Miami, FL office cohort than most peers: local tenure rank #125 of 1,564 (8th percentile). See the Miami attorney directory .
- Local rank
- #125
- City cohort
- 1,564
- Local percentile
- 8th
- Admitted
- 1986
Nearest tenure peers in Miami
- Henry Nissim Adorno admitted 1986 · 40 yr
- Robin Jackson Allen admitted 1986 · 40 yr
- David W. Bianchi admitted 1986 · 40 yr
- Gary Frederick Birnberg admitted 1986 · 40 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 Markham compares to fellow Seton Hall Univ alumni
Among the 113 Seton Hall Univ graduates in the New York register, Markham Richard Leventhal is longer-tenured than 79%.
40 years vs. Seton Hall Univ alumni
Years since admission - 113 NY-registered alumni of this school
40 Top 21% higher than 79% of 113 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
- 2070399
- Year Admitted
- 1986 (40 yrs · veteran)
- Judicial Department
- 1
- Next Registration
- Dec 2026
Location & Contact
- Company
- Attorney
- City
- Miami, FL
- ZIP Code
- 33136
- Phone
- (305) 347-6905
Education
SETON HALL UNIV
Status Distribution Across the New York Bar
Markham Richard Leventhal'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: Attorney
Other NY-registered attorneys who share this firm name on the OCA register (not a geographic peer set).
Near-tenure Seton Hall Univ 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 Miami, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Markham Richard Leventhal: closest NY bar admission year outside FL, and closest out-of-state office cities by how many NY-registered attorneys they list (~1,565 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.
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Compare attorneys →Before you rely on this record
Markham Richard Leventhal'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 Markham Leventhal licensed?
Markham Leventhal is licensed to practice law in New York.
When was Markham Richard Leventhal admitted to the bar?
Markham Richard Leventhal's admission to the New York bar dates back to 1986.
Where did Markham Richard Leventhal go to law school?
Markham Richard Leventhal attended SETON HALL UNIV.
What company does Markham Richard Leventhal work for?
Markham Richard Leventhal is associated with Attorney in Miami, FL.
Is Markham Richard Leventhal in good standing?
Yes, Markham Richard Leventhal 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.