Judge Daniel A. O'Brien: Professional Background and Legal Expertise

Oakland County Probate Court, Department Courtroom 1D, First Floor

Biography

Hon. Daniel A. O’Brien is judge for the Oakland County Probate Court in Michigan. He was elected to the bench in November 2008.

During his judicial tenure, O’Brien has served as presiding judge of estates and trusts.

Prior to his election, he handled general civil, criminal, and probate matters in private practice for thirteen years (1995 to 2008). Along with his practice, O’Brien served as a magistrate for the Fifty-Second District Court, Division Two (2001 to 2008).

Before that, he had worked as an assistant prosecutor with the Office of the Prosecuting Attorney in Oakland County (1991 to 1995) and was a former research attorney for the Michigan Court of Appeals (1988 to 1990), including for the Hon. Myron H. Wahls (1989 to 1990).

O’Brien received a B.S. in electrical engineering from Michigan Technological University in 1981. He then worked for four years as an electrical engineer for Texas Instruments (1981 to 1985) before completing a J.D. at the University of Detroit, Mercy School of Law in 1988.

His memberships have included the Oakland County Bar Association, the Michigan Probate Judges Association, and the Southeast Michigan Probate Judges Association.

Recent Cases by Hon. Daniel A. O'Brien

MIDDLETON JERRY A vs. SALVATION ARMY

On June 10, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

Jun 10, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

Case #

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Case Last Refreshed

Jun 12, 2026

PEOPLE vs. RAYNOR KIMBERLY ALICE

On May 29, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 29, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

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Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

Jun 02, 2026

BURRILL DIANE vs. HAMBLIN JAMES

On May 28, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 28, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

Case #

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Practice Area

Torts

Matter Type

Personal Injury

Case Last Refreshed

Jun 02, 2026

BATES MARDEL vs. CITIZENS INS CO OF THE MIDWEST

On May 28, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 28, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

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Jun 02, 2026

MSU FEDERAL CREDIT UNION vs. AUGHTRY DEVON

On May 28, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 28, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

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Practice Area

Commercial

Matter Type

Breach of Contract

Case Last Refreshed

Jun 02, 2026

PEOPLE vs. BANKS SHAMERA SHANAY

On May 28, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 28, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

Case #

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Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

Jun 02, 2026

PEOPLE vs. PRUDEN DIANE KAY

On May 28, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 28, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

Case #

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Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

Jun 02, 2026

PEOPLE vs. RUSSELL ANGELA NICOLE

On May 27, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 27, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

Case #

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Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

Jun 02, 2026

KOSMAL JOHN ROSS vs. MICH ST SECRETARY OF STATE

On May 27, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 27, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

Case #

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Practice Area

Torts

Matter Type

Automobile

Case Last Refreshed

Jun 02, 2026

DARE FRED PERRY vs. MICHIGAN INS CO

On May 27, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 27, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

Case #

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Practice Area

Commercial

Matter Type

Breach of Contract

Case Last Refreshed

Jun 02, 2026

FINLEY SHARON vs. PROGRESSIVE MARATHON INS CO

On May 27, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 27, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

Case #

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Practice Area

Insurance

Matter Type

General Insurance

Case Last Refreshed

Jun 02, 2026

VRA ACCOUNTING SERV vs. GOLZARRI CORP

On May 27, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 27, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

Case #

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Practice Area

Commercial

Matter Type

Breach of Contract

Case Last Refreshed

Jun 02, 2026

ZMC PHARMACY vs. STATE FARM MUTUAL AUTOMOBILE I

On May 27, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 27, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

Case #

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Practice Area

Insurance

Matter Type

General Insurance

Case Last Refreshed

Jun 02, 2026

WYOMING CHIROPRACTIC HEALTH CL vs. USAA CASUALTY INS CO

On May 26, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 26, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

Case #

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Practice Area

Insurance

Matter Type

General Insurance

Case Last Refreshed

Jun 02, 2026

YATOOMA NORMAN vs. BROWN & HILDERLEY

On May 26, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 26, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

Case #

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Practice Area

Commercial

Matter Type

General Commercial

Case Last Refreshed

Jun 02, 2026

PEOPLE vs. KENDRICK JOSEPH ALLEN

On May 26, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 26, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

Case #

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Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

Jun 02, 2026

MEMON MAZHAR vs. ALLSTATE INS CO

On May 22, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 22, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

Case #

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Practice Area

Commercial

Matter Type

Breach of Contract

Case Last Refreshed

Jun 02, 2026

PORCELLI KIMBERLY JUNE vs. DMC HURON VALLEYSINAI HOSPITAL

On May 22, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 22, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

Case #

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Practice Area

Torts

Matter Type

Personal Injury

Case Last Refreshed

Jun 02, 2026

LIVELY SANTANNA vs. HALIM TAJAMMUL

On May 22, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 22, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

Case #

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Practice Area

Torts

Matter Type

Personal Injury

Case Last Refreshed

Jun 02, 2026

BLAKE ASHLEY vs. ATCHU DALAL DOKHO

On May 21, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 21, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

Case #

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Practice Area

Torts

Matter Type

Automobile

Case Last Refreshed

Jun 02, 2026

PEOPLE vs. SMITH JOSEPH EDWARD

On May 21, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 21, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

Case #

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Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

Jun 02, 2026

SAJTOS RICHARD vs. HAHN RANDY

On May 21, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 21, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

Case #

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Practice Area

Torts

Matter Type

Automobile

Case Last Refreshed

Jun 03, 2026

GOLDSWORTHY JULIA K vs. TAYLOR MARTEZ

On May 21, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 21, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

Case #

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Practice Area

Probate

Matter Type

Estate Administration

Case Last Refreshed

Jun 02, 2026

PEOPLE vs. CROSBY JAIDEN ELSTAVION

On May 21, 2026 a case was filed in the jurisdiction of Oakland County. Judge Daniel A. O'Brien presiding.

Filed

May 21, 2026

Judge

Hon. Daniel A. O'Brien 👉 Discover key insights by exploring more analytics for Daniel A. O'Brien

Court

Oakland County

County

Oakland County, MI

Case #

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Practice Area

Criminal

Matter Type

General Criminal

Case Last Refreshed

Jun 02, 2026

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About

Daniel A. O'Brien
Current Appointment Oakland County Probate Court, Department Courtroom 1D, First Floor	Oakland County Probate Court, Department Courtroom 1D, First Floor
Election/Appointment November 4, 2008 - Oakland County Probate Court November 4, 2014 - Re-elected	November 4, 2008 - Oakland County Probate Court November 4, 2014 - Re-elected
Education J.D., University of Detroit, Mercy School of Law - 1988 B.S., Michigan Technological University - 1981	J.D., University of Detroit, Mercy School of Law - 1988 B.S., Michigan Technological University - 1981

Court Info

Court Info
Current Court:	MI - Oakland County Probate Court
Clerk phone:	+1 (248) 858-0287
Fax:	+1 (248) 975-9780

Career History

Career History
Role	Employer	Where
Judge	Oakland County Probate Court	Oakland County, Michigan
Magistrate	Fifty-Second District Court (Division Two) of Michigan	Oakland County, Michigan
Attorney	Private Practice	None
Assistant Prosecutor	Office of the Prosecuting Attorney	Oakland County, Michigan
Research Attorney	Michigan Court of Appeals with the Hon. Myron H. Wahls	None
Research Attorney	Michigan Court of Appeals	None