Judge Robert E. Antonacci: Professional Background and Legal Expertise

Biography

Hon. Robert E. Antonacci, II is a justice of the Onondaga County Supreme Court in the Fifth Judicial District of New York. He was elected to the Supreme Court in 2019.

At the time, Antonacci was serving as a New York State Senator in New York’s 50th Senatorial District. He was elected to the Senate seat in January 2019 and stepped down to assume his position on the Supreme Court.

Antonacci received a B.S. in accounting from Le Moyne College in 1987. After graduating with his bachelor’s degree, he joined the accounting firm Ernst & Young and would later become a licensed Certified Public Accountant (C.P.A.) in 1990. He went on to complete a J.D. at Syracuse University Law School in 1992.

After law school, Antonacci entered into solo practice at his own law firm. In addition to his private practice (1993 to 2007), he served as a Zoning Board attorney (2004 to 2005), a budget officer (2006), and town comptroller (2007) for the Town of Salina. Then, in 2007, Antonacci was elected county comptroller of Onondaga County. He would retain this position in subsequent elections, resigning after his election to the New York State Senate.

He has taught as an adjunct professor in the Business Administration Department of Le Moyne College.

Antonacci has served as a board member of the Onondaga County Resource Recovery Agency. In addition, he is active in the athletic community, where he serves as a referee for high school basketball games as well as oversees a youth baseball league. He also played on two All World Softball Tournament Teams.

Born and raised in Syracuse, New York, Antonacci attended Our Lady of Pompei Grammar School and Bishop Grimes High School.

Recent Cases by Hon. Robert E. Antonacci

Melink Solar, Llc v. Performance Personnel Services Llc

On February 2, 2026 an other matters - mechanic's lien case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

15 Files

Filed

Feb 02, 2026

Status

Active

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

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Court Category

Other Matters - Mechanic's Lien

Practice Area

Creditor

Matter Type

Liens

Case Last Refreshed

Feb 03, 2026

In the Matter of the Application of KENYA FLAVIUS, as Mother and Natural Guardian of E.N. an infant, for permission to compromise and settle a claim on behalf of infant, E.N.,

On January 23, 2026 a sp-other case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

8 Files

Filed

Jan 23, 2026

Status

Closed

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

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Court Category

SP-Other

Case Last Refreshed

Feb 05, 2026

Kargbo, Ibrahim Kalilulai

On January 23, 2026 an om-other case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

Filed

Jan 23, 2026

Status

Closed

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

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Court Category

OM-Other

Case Last Refreshed

Jan 27, 2026

App Funding Beta LLC v. JPMorgan Chase Bank, N.A. et al

On January 21, 2026 an om-other case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

7 Files

Filed

Jan 21, 2026

Status

Active

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

(Subscribe to View)

Court Category

OM-Other

Practice Area

Commercial

Matter Type

Breach of Contract

Case Last Refreshed

Jan 21, 2026

City Of Syracuse v. Show Not Tell One Llc

On January 21, 2026 a special proceedings - other (code enforcement) case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

26 Files

Filed

Jan 21, 2026

Status

Active

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

(Subscribe to View)

Court Category

Special Proceedings - Other (Code Enforcement)

Practice Area

Creditor

Matter Type

Judgment Enforcement

Case Last Refreshed

Jan 23, 2026

Widmayer, Jessica v. Yager, Christopher et al

On January 16, 2026 a tort-other case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

9 Files

Filed

Jan 16, 2026

Status

Active

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

(Subscribe to View)

Court Category

Tort-Other

Practice Area

Torts

Matter Type

General Torts

Case Last Refreshed

Feb 02, 2026

Harper, Duval v. Tesla Motors New York LLC

On January 15, 2026 a tort-other case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

Filed

Jan 15, 2026

Status

Active

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

(Subscribe to View)

Court Category

Tort-Other

Practice Area

Torts

Matter Type

General Torts

Case Last Refreshed

Jan 15, 2026

FEDERAL NATIONAL MORTGAGE ASSOCIATION v. NOB HILL APARTMENT GROUP LLC et al

On January 8, 2026 a comm-other case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

27 Files

Filed

Jan 08, 2026

Status

Consolidation

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

(Subscribe to View)

Court Category

Comm-Other

Practice Area

Commercial

Matter Type

General Commercial

Case Last Refreshed

Jan 14, 2026

THE IRWIN LAW FIRM PLLC et al v. ONONDAGA COUNTY SHERIFF'S DEPARTMENT

On December 31, 2025 a sp-cplr article 78 (body or officer) case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

9 Files

Filed

Dec 31, 2025

Status

Active

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

(Subscribe to View)

Court Category

SP-CPLR Article 78 (Body or Officer)

Practice Area

Administrative

Matter Type

Agency Action

Case Last Refreshed

Jan 23, 2026

Syracuse Cooperative Federal Credit Union v. Pope Jr, James et al

On December 23, 2025 a rp-mortgage foreclosure-residential case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

9 Files

Filed

Dec 23, 2025

Status

Active

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

(Subscribe to View)

Court Category

RP-Mortgage Foreclosure-Residential

Practice Area

Property

Matter Type

Foreclosure

Case Last Refreshed

Feb 04, 2026

App Funding Beta LLC v. Antoine Colin Sole Prop et al

On December 16, 2025 a comm-contract-commercial division case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

1 File

Filed

Dec 16, 2025

Status

Active

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

(Subscribe to View)

Court Category

Comm-Contract-Commercial Division

Practice Area

Commercial

Matter Type

Breach of Contract

Case Last Refreshed

Feb 04, 2026

Empower Federal Credit Union v. Sanders, Marqesha D. et al

On December 15, 2025 a rp-mortgage foreclosure-residential case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

8 Files

Filed

Dec 15, 2025

Status

Active

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

(Subscribe to View)

Court Category

RP-Mortgage Foreclosure-Residential

Practice Area

Property

Matter Type

Foreclosure

Case Last Refreshed

Feb 03, 2026

BUSSEY-OWENS, ANGELA R v. MERKEL, JADE E

On December 12, 2025 a tort-motor vehicle case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

2 Files

Filed

Dec 12, 2025

Status

Active

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

(Subscribe to View)

Court Category

Tort-Motor Vehicle

Practice Area

Torts

Matter Type

Automobile

Case Last Refreshed

Jan 20, 2026

BANKERS HEALTHCARE GROUP, LLC v. MATTHEW C. ALLISON D/B/A MATTHEW C. ALLISON, SOLE PROPRIETOR et al

On December 11, 2025 a comm-business entity case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

2 Files

Filed

Dec 11, 2025

Status

Active

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

(Subscribe to View)

Court Category

Comm-Business Entity

Practice Area

Securities

Matter Type

Business Governance

Case Last Refreshed

Feb 02, 2026

Sidney Federal Credit Union v. Taylor L. Woodward

On December 10, 2025 an other matters - consumer credit (non-card) transaction case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

13 Files

Filed

Dec 10, 2025

Status

Active

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

(Subscribe to View)

Court Category

Other Matters - Consumer Credit (Non-Card) Transaction

Practice Area

Creditor

Matter Type

Consumer Debt

Case Last Refreshed

Dec 10, 2025

Home Headquarters, Inc. v. Carroll, Meghan et al

On December 9, 2025 a rp-mortgage foreclosure-residential case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

8 Files

Filed

Dec 09, 2025

Status

Settlement

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

(Subscribe to View)

Court Category

RP-Mortgage Foreclosure-Residential

Practice Area

Property

Matter Type

Foreclosure

Case Last Refreshed

Feb 05, 2026

City of Syracuse

On December 5, 2025 a sp-other case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

13 Files

Filed

Dec 05, 2025

Status

Closed

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

(Subscribe to View)

Court Category

SP-Other

Case Last Refreshed

Jan 14, 2026

Sweeting, Fortunata v. Syracuse City School District et al

On December 5, 2025 a tort-other case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

2 Files

Filed

Dec 05, 2025

Status

Active

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

(Subscribe to View)

Court Category

Tort-Other

Practice Area

Torts

Matter Type

General Torts

Case Last Refreshed

Feb 04, 2026

City of Syracuse

On December 5, 2025 a sp-other case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

13 Files

Filed

Dec 05, 2025

Status

Closed

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

(Subscribe to View)

Court Category

SP-Other

Case Last Refreshed

Dec 09, 2025

City of Syracuse

On December 1, 2025 a sp-other case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

13 Files

Filed

Dec 01, 2025

Status

Closed

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

(Subscribe to View)

Court Category

SP-Other

Case Last Refreshed

Dec 09, 2025

In the Matter of an Ex Parte Application for a Rental Registry Inspection Warrant for the Premises located at 817 Euclid Ave., a Single-Family Rental Residence, City of Syracuse, Ex Parte Petitioner, Property Address: 817 Euclid Ave., Syracuse, NY 1…

On December 1, 2025 a special proceedings - other (code enforcement) case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

15 Files

Filed

Dec 01, 2025

Status

Closed

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

(Subscribe to View)

Court Category

Special Proceedings - Other (Code Enforcement)

Practice Area

Creditor

Matter Type

Judgment Enforcement

Case Last Refreshed

Dec 03, 2025

In the Matter of an Ex Parte Application for a Rental Registry Inspection Warrant for the Premises located at 2424 Genesee St. E., a Single-Family Rental Residence, City of Syracuse, Ex Parte Petitioner, Property Address: 2424 Genesee St. E., Syracu…

On December 1, 2025 a special proceedings - other (code enforcement) case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

15 Files

Filed

Dec 01, 2025

Status

Closed

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

(Subscribe to View)

Court Category

Special Proceedings - Other (Code Enforcement)

Practice Area

Creditor

Matter Type

Judgment Enforcement

Case Last Refreshed

Dec 03, 2025

In the Matter of an Ex Parte Application for a Rental Registry Inspection Warrant for the Premises located at 909 Lancaster Ave., a Single-Family Rental Residence, City of Syracuse, Ex Parte Petitioner, Property Address: 909 Lancaster Ave., Syracuse…

On December 1, 2025 a special proceedings - other (code enforcement) case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

15 Files

Filed

Dec 01, 2025

Status

Closed

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

(Subscribe to View)

Court Category

Special Proceedings - Other (Code Enforcement)

Case Last Refreshed

Dec 03, 2025

City of Syracuse

On December 1, 2025 a sp-other case was filed in the jurisdiction of Onondaga County. Judge Robert E. Antonacci presiding.

13 Files

Filed

Dec 01, 2025

Status

Closed

Judge

Hon. Robert E. Antonacci 👉 Discover key insights by exploring more analytics for Robert E. Antonacci

Court

Supreme

County

Onondaga County, NY

Case #

(Subscribe to View)

Court Category

SP-Other

Case Last Refreshed

Dec 09, 2025

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About

Robert E. Antonacci
Current Appointment Onondaga County Supreme Court	Onondaga County Supreme Court
Education J.D., Syracuse University Law School - 1992 B.S., Le Moyne College - 1987	J.D., Syracuse University Law School - 1992 B.S., Le Moyne College - 1987

Documents related to Robert E. Antonacci

Court Info

Court Info
Current Court:	NY - Onondaga County Supreme Court
Clerk phone:	+1 (315) 671-1036
Chambers:	+1 (315) 671-1109
Chamber Fax:	+1 (315) 266-4367

Career History

Career History
Role	Employer	Where
Justice	Onondaga County Supreme Court	Onondaga County, New York
Senator	The New York State Senate	None
County Comptroller	Office of the County Comptroller	Onondaga County, New York
Town Comptroller	Town of Salina	Onondaga County, New York
Budget Officer	Town of Salina	Onondaga County, New York
Zoning Board Attorney	Town of Salina	Onondaga County, New York
Sole Practitioner	Private Practice	Onondaga County, New York