James Mark O'Keefe
- Verified against the New York State attorney registration file, July 2026
18 years in practice
First admitted in 2008
First admitted in 2008
- 2008 Admitted, New York
Overview
James Mark O'Keefe is an attorney admitted in New York (since 2008), based in Williamsville, NY.
This profile is built from public bar records and shows only what those records contain. James has not written or endorsed anything on this page.
Jurisdictions admitted
| Jurisdiction | Admitted | Bar number | Status |
|---|---|---|---|
| New York | 2008 | #4550422 | Active |
Education
- SUNY Buffalo Law SchoolLaw school, per the bar record
Contact and offices
Law Office of William Mattar, P.C.
6720 Main St
Williamsville, NY 14221
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 Williamsville
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.