New York attorney record · Judicial Dept 3
William Aaron Lesser
Temple University alumna, admitted to the New York bar in 2016, registered office in New York, NY. This record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2016
- Admitted
- 10
- Years in bar
- 5445853
- NY reg #
The record in one line
Admitted in 2016, William Aaron Lesser has built 10 years of active New York practice - more tenure than 25% of the state's currently-active attorneys.
- 10 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #62794 of 93,608
- by tenure in New York office peers
- Law school
- Temple University
Data updated September 2026
What this profile tells you
Bar status & tenure
Bar number 5445853 on the New York register belongs to William Aaron Lesser, currently in active standing. Registration is recorded within Judicial Department 3, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Cozen O'Connor, located in New York, NY (New York County), ZIP 10007. 5 other attorneys share this firm affiliation in the registry. Educational background: TEMPLE UNIVERSITY.
State context & due diligence
William Aaron Lesser is currently part of the New York bar's active cohort, a group the breakdown below sizes against the full register.
Experience vs. the active New York bar
10 years into an active New York practice since a 2016 admission, William Aaron Lesser sits here on the statewide experience curve - taller bars hold more attorneys at that experience level.
10 years on the New York bar
Years since admission, all currently-active NY attorneys
10 Top 75% higher than 25% 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 New York, NY office peers
William Aaron Lesser's 10-year NY register tenure places mid-pack in New York, NY: rank #62,794 of 93,608 office peers (67th percentile). See the New York attorney directory .
- Local rank
- #62,794
- City cohort
- 93,608
- Local percentile
- 67th
- Admitted
- 2016
Nearest tenure peers in New York
- Joseph Elias Abboud admitted 2016 · 10 yr
- Alan Louis Aberg admitted 2016 · 10 yr
- Marie Joe Abi Nassif admitted 2016 · 10 yr
- Veronica Abraham admitted 2016 · 10 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 William compares to fellow Temple University alumni
Among the 421 Temple University graduates in the New York register, William Aaron Lesser is longer-tenured than 4%.
10 years vs. Temple University alumni
Years since admission - 421 NY-registered alumni of this school
10 Top 96% higher than 4% of 421 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 2016 admission class today
Of the 8,420 attorneys admitted to the New York bar in 2016, 72.9% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 5445853
- Year Admitted
- 2016 (10 yrs · mid-career)
- Judicial Department
- 3
- Next Registration
- Feb 2028
Location & Contact
- Company
- Cozen O'Connor
- City
- New York, NY
- County
- New York
- ZIP Code
- 10007
- Phone
- (212) 453-3808
Education
TEMPLE UNIVERSITY
Status Distribution Across the New York Bar
William Aaron Lesser'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: Cozen O'Connor
Other NY-registered attorneys who share this firm name on the OCA register (not a geographic peer set).
Near-tenure Temple University alumni
Fellow alumni on the NY register whose admission year is closest to 2016 (excluding same-firm colleagues above).
Same admission year (2016), other cities
NY-registered attorneys admitted in 2016 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 William Aaron Lesser: 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 (~2016)
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
William Aaron Lesser'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 William Lesser licensed?
William Lesser is licensed to practice law in New York.
When was William Aaron Lesser admitted to the bar?
William Aaron Lesser has been on the New York bar register since 2016.
Where did William Aaron Lesser go to law school?
William Aaron Lesser attended TEMPLE UNIVERSITY.
What company does William Aaron Lesser work for?
William Aaron Lesser is associated with Cozen O'Connor in New York, NY.
Is William Aaron Lesser in good standing?
Yes, William Aaron Lesser 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.