Atty. Phillip J. DeRosier

Atty. Phillip J. DeRosier

Phil DeRosier has nearly 20 years’ experience representing industry-leading corporations, banks, insurance companies, and individuals in the Michigan Supreme Court, Michigan Court of Appeals, and U.S. Courts of Appeals.

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Profile Summary

About Phillip J. DeRosier at a glance

Phillip J. DeRosier is a appellate attorney based in Detroit, Michigan, practicing at Dickinson Wright PLLC. Admitted to practice in Michigan, State Bar of Michigan. Educated at Western Michigan University (J.D., 1996) and Michigan State University (BA, 1993). Recognitions include Lawyer of the Year — Appellate Practice (Detroit) (2026), Best Lawyers in America — Appellate Practice (2026), and Best Lawyers in America — Awards: (2026). Serands clients in Detroit, MI and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Phil DeRosier has nearly 20 years’ experience representing industry-leading corporations, banks, insurance companies, and individuals in the Michigan Supreme Court, Michigan Court of Appeals, and U.S
  • Courts of Appeals
  • Phil has briefed and argued a wide variety of appeals, ranging from commercial contracts to insurance to business torts
  • He also devotes a significant part of his practice to briefing dispositive motions and working with trial counsel on pre- and post-trial motions, jury instructions, and preserving issues for appeal
  • Phil is a past Chair of the Governing Council of the State Bar of Michigan’s Appellate Practice Section, and is consistently recognized in Best Lawyers and Michigan Super Lawyers in the area of appellate practice
  • Phil is co-chair of the Michigan Appellate Bench Bar Conference and a contributing author to the Institute for Continuing Legal Education’s Michigan Appellate Handbook
  • Before joining the firm, Phil served as a law clerk for former Michigan Supreme Court Chief Justice Robert P. Young, Jr., and was a staff attorney at the Michigan Court of Appeals

Practice Areas Explained

Phillip J. DeRosier's Areas of Practice

Each practice area below reflects the types of cases Phillip J. DeRosier handles, with a brief overview of what that area of law covers.

Appellate Practice

Appellate attorneys for civil and criminal appeals at state and federal court.

Phillip J. DeRosier is one of 86,319 appellate attorneys indexed nationally. Browse appellate attorneys in Michigan →

Jurisdictional Context

Why local counsel matters in Michigan

Practicing law in Michigan. Legal matters in Michigan are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Detroit are typically filed in the local municipal court or the appropriate Michigan state district court, depending on subject matter and amount in controversy. An attorney licensed in Michigan brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Michigan courts without local counsel or pro hac vice admission.

Looking for additional Michigan attorneys? Browse all attorneys in Detroit or all attorneys in Michigan.

Frequently Asked

Common questions about Phillip J. DeRosier

Where is Phillip J. DeRosier's law office located?
Phillip J. DeRosier's law practice is located in Detroit, Michigan. The firm is Dickinson Wright PLLC. You can contact the office directly through this profile page.
What practice areas does Phillip J. DeRosier handle?
Phillip J. DeRosier focuses on appellate. Each practice area listed reflects experience handling cases of that type in Michigan.
Where did Phillip J. DeRosier go to law school?
Phillip J. DeRosier earned their education at (J.D., 1996); (BA, 1993).
How can I contact Phillip J. DeRosier for a consultation?
You can contact Phillip J. DeRosier directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Phillip J. DeRosier received?
Phillip J. DeRosier's notable recognition includes: Lawyer of the Year — Appellate Practice (Detroit); Best Lawyers in America — Appellate Practice; Best Lawyers in America — Awards:; Best Lawyers in America — Thomas M. Cooley Law Review's Distinguished Brief Award, 2009; Lawyer of the Year — Appellate Practice (Detroit).

Practice Areas

Education

J.D.
Western Michigan University
- 1996
BA
Michigan State University
- 1993

Awards

Lawyer of the Year — Appellate Practice (Detroit)
- 2026
Best Lawyers in America — Appellate Practice
- 2026
Best Lawyers in America — Awards:
- 2026
Best Lawyers in America — Thomas M. Cooley Law Review's Distinguished Brief Award, 2009
- 2026
Lawyer of the Year — Appellate Practice (Detroit)
- 2024
Lawyer of the Year — Appellate Practice (Detroit)
- 2021
Lawyer of the Year — Appellate Practice (Detroit)
- 2018

Bar Admissions

Michigan, State Bar of Michigan

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