New York attorney record · Judicial Dept 2
William Francis Mastro
New York Law School alumna, admitted to the New York bar in 2003, registered office in Staten Island, NY. This established record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2003
- Admitted
- 23
- Years in bar
- 4100913
- NY reg #
The record in one line
William Francis Mastro has held an active New York bar license for 23 years - admitted in 2003, longer-tenured than 51% of the state's currently-active attorneys.
- 23 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #673 of 1,107
- by tenure in Staten Island office peers
- Law school
- New York Law School
Data updated September 2026
What this profile tells you
Bar status & tenure
William Francis Mastro carries New York bar registration 4100913, an established, active practitioner 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 Vaslas Lepowsky & Hauss, LLP, located in Staten Island, NY (Richmond County), ZIP 10314. 2 other attorneys share this firm affiliation in the registry. Educational background: New York Law School (15,933 registered alumni).
State context & due diligence
With an established practice on record, William Francis Mastro remains inside the New York bar's active cohort - see below for how that share of the register compares.
Experience vs. the active New York bar
William Francis Mastro was admitted in 2003, giving 23 years on the New York register.
23 years on the New York bar
Years since admission, all currently-active NY attorneys
23 Top 49% higher than 51% 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 Staten Island, NY office peers
William Francis Mastro's 23-year NY register tenure places mid-pack in Staten Island, NY: rank #673 of 1,107 office peers (61st percentile). See the Staten Island attorney directory .
- Local rank
- #673
- City cohort
- 1,107
- Local percentile
- 61st
- Admitted
- 2003
Nearest tenure peers in Staten Island
- Daniel John Byrnes admitted 2003 · 23 yr
- Michael Camporeale admitted 2003 · 23 yr
- Elaine F. Cates admitted 2003 · 23 yr
- Jennifer Cesarano-Buthorn admitted 2003 · 23 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 New York Law School alumni
Among the 8,212 New York Law School graduates in the New York register, William Francis Mastro is longer-tenured than 71%.
23 years vs. New York Law School alumni
Years since admission - 8,212 NY-registered alumni of this school
23 Top 29% higher than 71% of 8,212 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
New York Law School's active-bar rate
Of New York Law School's 15,933 alumni in the New York register, 69.1% currently hold "Currently registered" status, above the statewide average.
The 2003 admission class today
Of the 8,250 attorneys admitted to the New York bar in 2003, 83.9% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 4100913
- Year Admitted
- 2003 (23 yrs · senior)
- Judicial Department
- 2
- Next Registration
- Oct 2027
Location & Contact
- Company
- Vaslas Lepowsky & Hauss, LLP
- City
- Staten Island, NY
- County
- Richmond
- ZIP Code
- 10314
- Phone
- (718) 761-9300
Education
Status Distribution Across the New York Bar
William Francis Mastro'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: Vaslas Lepowsky & Hauss, LLP
Other NY-registered attorneys who share this firm name on the OCA register (not a geographic peer set).
View all attorneys at this firm →Near-tenure New York Law School alumni
Fellow alumni on the NY register whose admission year is closest to 2003 (excluding same-firm colleagues above).
Same admission year (2003), other cities
NY-registered attorneys admitted in 2003 whose listed office city differs from Staten Island, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for William Francis Mastro: closest NY bar admission year outside NY, and closest out-of-state office cities by how many NY-registered attorneys they list (~1,108 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~2003)
Counts come from the NY State Office of Court Administration registration extract; peers are not a competence or practice-area ranking.
Verify This Attorney
Verify on NY Courts Attorney SearchNearby Attorneys in Staten Island, NY
Compare credentials side-by-side
Compare William Francis Mastro with similar attorneys in Staten Island.
Compare attorneys →Before you rely on this record
William Francis Mastro'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 Mastro licensed?
William Mastro is licensed to practice law in New York.
When was William Francis Mastro admitted to the bar?
William Francis Mastro was admitted to the bar in 2003.
Where did William Francis Mastro go to law school?
William Francis Mastro attended New York Law School.
What company does William Francis Mastro work for?
William Francis Mastro is associated with Vaslas Lepowsky & Hauss, LLP in Staten Island, NY.
Is William Francis Mastro in good standing?
Yes, William Francis Mastro 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.