William Francis Mastro
- Verified against the New York State attorney registration file, July 2026
23 years in practice
First admitted in 2003
First admitted in 2003
- 2003 Admitted, New York
Overview
William Francis Mastro is an attorney admitted in New York (since 2003), based in Staten Island, NY.
This profile is built from public bar records and shows only what those records contain. William has not written or endorsed anything on this page.
Jurisdictions admitted
| Jurisdiction | Admitted | Bar number | Status |
|---|---|---|---|
| New York | 2003 | #4100913 | Active |
Education
- New York Law SchoolLaw school, per the bar record
Contact and offices
Vaslas Lepowsky & Hauss, LLP
201 Edward Curry Ave Ste 100
Staten Island, NY 10314
The address and number above come from the attorney's public bar registration, which can lag a recent move. Confirm before visiting.
Other attorneys in Staten Island
Ordered by years licensed, from the same public records.
Sources for this profile: the New York State attorney registration file. License status can change; check the bar's own record for the current status before hiring. Updated July 12, 2026.