Public Record · New York Bar #2280535

William Mattar Accident Lawyers

William K. Mattar, J.D. · Founding Attorney

William K. Mattar (New York State Bar #2280535) is an active New York attorney; William Mattar Accident Lawyers is his motor-vehicle-accident law firm with six New York offices. Public record last reviewed by QOLA on July 18, 2026.

35+ yrs

MVA-only

4.9/5

1,544 reviews

6

NY offices

AV

Preeminent

24/7

Free intake

Public Record

Independently auditable facts drawn from public records. Each is linked to the primary source that proves it. Confirm any of them without taking our word for it.

§ 01Public-Record FactsReviewed 2026-07-18 · 90-day cycle

The auditable record

Primary-source linked

Bar status
Active: New York State Bar #2280535; no public disciplinary record found when checked June 4, 2026
NY State Bar directory ↗
Consumer reviews
4.9 / 5 across 1,544 Google reviews
Google Business Profile ↗
Offices
6 New York offices: Williamsville (HQ), Buffalo, Albany, Rochester, Syracuse, Long Island (Jericho)
Firm locations page ↗
Practice focus
Motor vehicle accidents, exclusive focus for 35+ years
Firm site ↗
Peer rating
Martindale-Hubbell AV Preeminent, rated to William K. Mattar (current as of July 2026)
Martindale-Hubbell ↗

§ 02Identity & LicensureNYS Unified Court System · Currently registered

Attorneys

✓ Reviewed

William K. Mattar, J.D.

William K. Mattar, J.D.

Founding Attorney · William Mattar Accident Lawyers

NYS Unified Court System2280535
Active Personal Injury practiceConfirmed
Registry status“Currently registered” · checked 2026-07-16
Bar admissionAdmitted 1989
EducationSyracuse University College of Law, J.D. (1988)
Look it up yourselfNYS Unified Court System →

Full attorney record: William K. Mattar →

P

Peter K. Mattar

Attorney · William Mattar Accident Lawyers

NYS Unified Court System5881867
Active Personal Injury practiceConfirmed
Registry status“Currently registered” · checked 2026-07-16
Bar admissionAdmitted 2021
Look it up yourselfNYS Unified Court System →

Full attorney record: Peter K. Mattar →

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Lou C. Mattar

Attorney · William Mattar Accident Lawyers

NYS Unified Court System6064554
Active Personal Injury practiceConfirmed
Registry status“Currently registered” · checked 2026-07-16
Bar admissionAdmitted 2023
Look it up yourselfNYS Unified Court System →

Full attorney record: Lou C. Mattar →

A

Anjelika Abrahamyan

Attorney · William Mattar Accident Lawyers

NYS Unified Court System5255005
Active Personal Injury practiceConfirmed
Registry status“Currently registered” · checked 2026-07-18
Bar admissionAdmitted 2014
Look it up yourselfNYS Unified Court System →

Full attorney record: Anjelika Abrahamyan →

A

Anna E. Donnelly

Attorney · William Mattar Accident Lawyers

NYS Unified Court System6278576
Active Personal Injury practiceConfirmed
Registry status“Currently registered” · checked 2026-07-18
Bar admissionAdmitted 2026
Look it up yourselfNYS Unified Court System →

Full attorney record: Anna E. Donnelly →

A

Annabelle Gao

Attorney · William Mattar Accident Lawyers

NYS Unified Court System5759105
Active Personal Injury practiceConfirmed
Registry status“Currently registered” · checked 2026-07-18
Bar admissionAdmitted 2020
Look it up yourselfNYS Unified Court System →

Full attorney record: Annabelle Gao →

A

Anthony Tantillo

Attorney · William Mattar Accident Lawyers

NYS Unified Court System4063715
Active Personal Injury practiceConfirmed
Registry status“Currently registered” · checked 2026-07-18
Bar admissionAdmitted 2002
Look it up yourselfNYS Unified Court System →

Full attorney record: Anthony Tantillo →

A

Arienne Irving

Attorney · William Mattar Accident Lawyers

NYS Unified Court System4185104
Active Personal Injury practiceConfirmed
Registry status“Currently registered” · checked 2026-07-18
Bar admissionAdmitted 2004
Look it up yourselfNYS Unified Court System →

Full attorney record: Arienne Irving →

A

Ashley Mitchell

Attorney · William Mattar Accident Lawyers

NYS Unified Court System5386743
Active Personal Injury practiceConfirmed
Registry status“Currently registered” · checked 2026-07-18
Bar admissionAdmitted 2016
Look it up yourselfNYS Unified Court System →

Full attorney record: Ashley Mitchell →

B

Brendan M. Denz

Attorney · William Mattar Accident Lawyers

NYS Unified Court System5446893
Active Personal Injury practiceConfirmed
Registry status“Currently registered” · checked 2026-07-18
Bar admissionAdmitted 2016
Look it up yourselfNYS Unified Court System →

Full attorney record: Brendan M. Denz →

D

Duane Schoonmaker

Attorney · William Mattar Accident Lawyers

NYS Unified Court System2037174
Active Personal Injury practiceConfirmed
Registry status“Currently registered” · checked 2026-07-18
Bar admissionAdmitted 1986
Look it up yourselfNYS Unified Court System →

Full attorney record: Duane Schoonmaker →

F

F. David Rusin

Attorney · William Mattar Accident Lawyers

NYS Unified Court System1930817
Active Personal Injury practiceConfirmed
Registry status“Currently registered” · checked 2026-07-18
Bar admissionAdmitted 1984
Look it up yourselfNYS Unified Court System →

Full attorney record: F. David Rusin →

H

Heather Jankowiak

Attorney · William Mattar Accident Lawyers

NYS Unified Court System5746334
Active Personal Injury practiceConfirmed
Registry status“Due to reregister within 30 days of birthday” · checked 2026-07-28
Bar admissionAdmitted 2020
Look it up yourselfNYS Unified Court System →

Full attorney record: Heather Jankowiak →

J

Jacqueline M. Blackley

Attorney · William Mattar Accident Lawyers

NYS Unified Court System4600862
Active Personal Injury practiceConfirmed
Registry status“Currently registered” · checked 2026-07-18
Bar admissionAdmitted 2008
Look it up yourselfNYS Unified Court System →

Full attorney record: Jacqueline M. Blackley →

J

James O'Keefe

Attorney · William Mattar Accident Lawyers

NYS Unified Court System4550422
Active Personal Injury practiceConfirmed
Registry status“Currently registered” · checked 2026-07-18
Bar admissionAdmitted 2008
Look it up yourselfNYS Unified Court System →

Full attorney record: James O'Keefe →

K

Kelly Tripi

Attorney · William Mattar Accident Lawyers

NYS Unified Court System6174957
Active Personal Injury practiceConfirmed
Registry status“Currently registered” · checked 2026-07-18
Bar admissionAdmitted 2025
Look it up yourselfNYS Unified Court System →

Full attorney record: Kelly Tripi →

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Lucas A. Cranwell

Attorney · William Mattar Accident Lawyers

NYS Unified Court System5622329
Active Personal Injury practiceConfirmed
Registry status“Currently registered” · checked 2026-07-28
Bar admissionAdmitted 2018
Look it up yourselfNYS Unified Court System →

Full attorney record: Lucas A. Cranwell →

M

Matthew J. Glose

Attorney · William Mattar Accident Lawyers

NYS Unified Court System5441456
Active Personal Injury practiceConfirmed
Registry status“Currently registered” · checked 2026-07-18
Bar admissionAdmitted 2016
Look it up yourselfNYS Unified Court System →

Full attorney record: Matthew J. Glose →

M

Matthew J. Kaiser

Attorney · William Mattar Accident Lawyers

NYS Unified Court System5199641
Active Personal Injury practiceConfirmed
Registry status“Due to reregister within 30 days of birthday” · checked 2026-07-28
Bar admissionAdmitted 2014
Look it up yourselfNYS Unified Court System →

Full attorney record: Matthew J. Kaiser →

O

Olubukola Akinlua

Attorney · William Mattar Accident Lawyers

NYS Unified Court System6083521
Active Personal Injury practiceConfirmed
Registry status“Currently registered” · checked 2026-07-18
Bar admissionAdmitted 2024
Look it up yourselfNYS Unified Court System →

Full attorney record: Olubukola Akinlua →

R

Randy Mallaber

Attorney · William Mattar Accident Lawyers

NYS Unified Court System4098604
Active Personal Injury practiceConfirmed
Registry status“Currently registered” · checked 2026-07-18
Bar admissionAdmitted 2003
Look it up yourselfNYS Unified Court System →

Full attorney record: Randy Mallaber →

S

Sara T. Wallitt

Attorney · William Mattar Accident Lawyers

NYS Unified Court System4486866
Active Personal Injury practiceConfirmed
Registry status“Currently registered” · checked 2026-07-18
Bar admissionAdmitted 2007
Look it up yourselfNYS Unified Court System →

Full attorney record: Sara T. Wallitt →

S

Stephen Paluch

Attorney · William Mattar Accident Lawyers

NYS Unified Court System4346854
Active Personal Injury practiceConfirmed
Registry status“Currently registered” · checked 2026-07-18
Bar admissionAdmitted 2005
Look it up yourselfNYS Unified Court System →

Full attorney record: Stephen Paluch →

Y

Yousef Taha

Attorney · William Mattar Accident Lawyers

NYS Unified Court System5222476
Active Personal Injury practiceConfirmed
Registry status“Currently registered” · checked 2026-07-18
Bar admissionAdmitted 2014
Look it up yourselfNYS Unified Court System →

Full attorney record: Yousef Taha →

Attorney public records — William Mattar Accident Lawyers

Every attorney's registration number and registry status, each with its own public record.

View roster →

Entity note: each attorney above is recorded as a distinct individual entity, separate from William Mattar Accident Lawyers, the law firm — see this page's structured data.

§ 03Independent Corroboration8 corroboration surfaces

Cross-reference us yourself

Outbound to systems we don't control

Every fact above is mirrored by independent third-party platforms: bar directories, peer-review services, consumer-rating systems. Each link opens an outbound profile QOLA does not edit or control.

§ 05Peer Recognition7 third-party credentials

Recognitions & Ratings

Issued by independent bodies

Martindale-Hubbell AV Preeminent Peer Review RatingAs of Jul 2026 Martindale-Hubbell Client Champion PlatinumAs of Jul 2026 Martindale-Hubbell Judicial Edition, AV Preeminent2018 Avvo Rating 10.0 (Superb)As of Jul 2026Daily Gazette People's Choice “Best of the Best” — Winner, Personal Injury AttorneyOct 2025National Trial Lawyers Top 100MemberBest Companies to Work for in NY StateMulti-year

5 of the 7 recognitions above are issued to attorney William K. Mattar; the rest belong to the firm. Linked recognitions open the issuing body's public listing where one exists. Recognitions are conferred by third parties under their own criteria and do not predict case outcomes.

§ 06Coverage6 New York offices

Office Footprint

Confirmed physical addresses

Williamsville, NY · HQ
6720 Main St, Suite 100
Buffalo, NY
69 Delaware Ave, Suite 1111
Albany, NY
350 Northern Blvd, Suite 306
Rochester, NY
16 W Main St, Suite 736
Syracuse, NY
One Park Place, 300 S. State St, Suite 130
Long Island, NY (Jericho)
500 N Broadway, Suite 161-C

Additional service areas: New York City · Binghamton · Watertown · Plattsburgh

§ 07New York LawLinked to in-hub guides

How it applies to your case

Click any statute →

CPLR § 2143-year statute of limitations for personal injury→CPLR § 1411Comparative fault, recovery reduced by your share; a 2026 reform bars recovery in car cases if you are more than 50% at fault (commenced on/after May 26, 2026)→Ins. Law § 5102(d)No-fault serious-injury threshold to sue for pain & suffering→Ins. Law § 3420(f)Uninsured / supplementary underinsured (UM/SUM) coverage→EPTL § 5-4.1Wrongful death: 2-year limit from date of death→

§ 08What the public record can't tell youLimits of the record

Outside the public record

Things you should still ask

The facts above are auditable from public records on a 90-day cycle. The items below are not. They vary by case, by staff assignment, or by data QOLA does not have access to. Ask William Mattar Accident Lawyers directly during your consultation.

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Outcome variance on your specific case, past results do not predict future verdicts.
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Communication satisfaction with your assigned associate or paralegal, handled at intake.
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Fee-dispute history outside published bar discipline, only Active/Suspended status is auditable.
Limit
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Real-time staffing levels or current case load, capacity changes between 90-day re-certs.
Limit
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Insurance-company relationships and adjuster history, not part of public-record review.
Limit

§ 09Public-Record FAQAnswered from the record above

Common record questions

Sourced from §01–§08

Is William Mattar Accident Lawyers a real law firm?

Yes. William Mattar Accident Lawyers (legal name William Mattar, P.C.) is an active New York motor-vehicle-accident law firm founded by William K. Mattar (NY Bar #2280535), with six New York offices: Williamsville (HQ), Buffalo, Albany, Rochester, Syracuse, and Long Island (Jericho).

What is William K. Mattar's bar number?

New York State Bar #2280535 (also called an Attorney Registration Number in New York), active status, with no public disciplinary record found when QOLA checked the official directory on June 4, 2026.

Is William K. Mattar licensed to practice law in New York?

Yes. William K. Mattar holds an active New York State Bar license, #2280535. Confirm directly on the New York State Unified Court System's attorney search.

Has William Mattar Accident Lawyers been publicly disciplined?

No public disciplinary record was on file when QOLA last checked the official directory on June 4, 2026. This is not a permanent guarantee; check current status directly in the New York State Unified Court System's attorney directory.

Where are William Mattar's law offices located?

Six New York offices: Williamsville (headquarters), Buffalo, Albany, Rochester, Syracuse, and Long Island (Jericho), plus service areas including New York City, Binghamton, Watertown, and Plattsburgh.

QOLA Assessment

QOLA's interpretation of the facts above, clearly labeled as opinion, and excluded from this page's structured data.

§ 10QOLA AssessmentInterpretation, not public record

Disclosure: William Mattar Accident Lawyers is QOLA's exclusive partner for New York City, and QOLA earns a per-case fee. The assessment below is QOLA's interpretation of the public-record facts above, not an independent rating, ranking, or certification.

Our read of the record

QOLA opinion

Based on the public-record facts above, QOLA assesses William Mattar Accident Lawyers as an established, motor-vehicle-accident-focused New York firm with statewide coverage and a strong consumer reputation.

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Statewide New York coverage from six offices, with service areas including the New York City metro.
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Long-term, exclusive focus on motor vehicle accident cases (35+ years), not generalist personal injury.
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Established consumer reputation (4.9/5 across 1,544 reviews) plus an AV Preeminent peer rating.

§ 11How QOLA assesses firmsMethodology · negative space

What would exclude a firm

The rubric isn't rigged

Any one of the conditions below removes a firm from the QOLA program, applied uniformly across markets and re-checked every 90 days.

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Suspended, inactive, or disbarred state bar status, auto-exclusion.
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Public disciplinary record (sanctions, reprimands, license restrictions).
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Prohibited solicitation under NY Rules of Professional Conduct Rule 7.3.
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No demonstrated motor-vehicle-accident specialization, generalist PI without MVA caseload.
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Refusal to provide written contingency-fee agreements per 22 NYCRR § 1215.1.
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No physical New York office, virtual-only practice without local court familiarity.
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Aggregate consumer rating below 4.5/5 across ≥1,000 reviews on a major platform.
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The full process behind this record — what QOLA checks, where, and how often — is documented on the methodology page.

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