New York attorney record · Judicial Dept 4
Arienne Jill Irving
University At Buffalo alumna, admitted to the New York bar in 2004, registered office in Williamsville, NY. This established record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2004
- Admitted
- 22
- Years in bar
- 4185104
- NY reg #
The record in one line
Arienne Jill Irving has held an active New York bar license for 22 years - admitted in 2004, longer-tenured than 51% of the state's currently-active attorneys.
- 22 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #262 of 456
- by tenure in Williamsville office peers
- Law school
- University At Buffalo
Data updated August 2026
What this profile tells you
Bar status & tenure
Arienne Jill Irving carries New York bar registration 4185104, an established, active practitioner in good standing. Registration is recorded within Judicial Department 4, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under William Mattar, P.C., located in Williamsville, NY (Erie County), ZIP 14221. 5 other attorneys share this firm affiliation in the registry. Educational background: UNIVERSITY AT BUFFALO (753 registered alumni).
State context & due diligence
With an established practice on record, Arienne Jill Irving 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
Arienne Jill Irving was admitted in 2004, giving 22 years on the New York register.
22 years on the New York bar
Years since admission, all currently-active NY attorneys
22 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 · August 2026
Tenure among Williamsville, NY office peers
Relative to the 456 NY-registered attorneys listing Williamsville, NY, Arienne Jill Irving is longer-tenured than 57% (local rank #262). See the Williamsville attorney directory .
- Local rank
- #262
- City cohort
- 456
- Local percentile
- 57th
- Admitted
- 2004
Nearest tenure peers in Williamsville
- Howard Dunning Cadmus admitted 2004 · 22 yr
- Steven George Carling admitted 2004 · 22 yr
- Nicole Carol Gazzo admitted 2004 · 22 yr
- Joseph Alexander Leta admitted 2004 · 22 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 August 2026. Derived local rank, not published upstream.
How Arienne compares to fellow University At Buffalo alumni
Among the 712 University At Buffalo graduates in the New York register, Arienne Jill Irving is longer-tenured than 33%.
22 years vs. University At Buffalo alumni
Years since admission - 712 NY-registered alumni of this school
22 Top 67% higher than 33% of 712 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 · August 2026
University At Buffalo's active-bar rate
Of University At Buffalo's 753 alumni in the New York register, 79.5% currently hold "Currently registered" status, above the statewide average.
The 2004 admission class today
Of the 8,407 attorneys admitted to the New York bar in 2004, 65.2% are still "Currently registered" today, below the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 4185104
- Year Admitted
- 2004 (22 yrs · senior)
- Judicial Department
- 4
- Next Registration
- Jan 2028
Location & Contact
- Company
- William Mattar, P.C.
- City
- Williamsville, NY
- County
- Erie
- ZIP Code
- 14221
- Phone
- (716) 633-3535
Education
Status Distribution Across the New York Bar
Arienne Jill Irving'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: William Mattar, P.C.
Other NY-registered attorneys who share this firm name on the OCA register (not a geographic peer set).
Near-tenure University At Buffalo alumni
Fellow alumni on the NY register whose admission year is closest to 2004 (excluding same-firm colleagues above).
Same admission year (2004), other cities
NY-registered attorneys admitted in 2004 whose listed office city differs from Williamsville, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Arienne Jill Irving: closest NY bar admission year outside NY, and closest out-of-state office cities by how many NY-registered attorneys they list (~457 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~2004)
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
Arienne Jill Irving'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 Arienne Irving licensed?
Arienne Irving is licensed to practice law in New York.
When was Arienne Jill Irving admitted to the bar?
Arienne Jill Irving was admitted to the bar in 2004.
Where did Arienne Jill Irving go to law school?
Arienne Jill Irving attended UNIVERSITY AT BUFFALO.
What company does Arienne Jill Irving work for?
Arienne Jill Irving is associated with William Mattar, P.C. in Williamsville, NY.
Is Arienne Jill Irving in good standing?
Yes, Arienne Jill Irving 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.