Atty. John Peter Decker

Atty. John Peter Decker

John Peter Decker is a lawyer practicing corporate law, mergers and acquisitions, finance and 1 other area of law. John received a degree from London Business School in 2007, and has been licensed for 26 years.

Southfield Southfield 26 Years Experience 26 year
Call (248) 965-9475

Profile Summary

About John Peter Decker at a glance

John Peter Decker is a business and m&a attorney based in Southfield, Michigan, practicing at Taft. They have 26+ years of legal experience, licensed to practice since 2000. Admitted to practice in Illinois (2000) and Michigan (2003). Educated at London Business School (Masters, 2007) and Harvard Law School (J.D., 2000). Active member of Oakland County and American Bar Associations State Bar of Michigan. Serves clients in Southfield, MI and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John Peter Decker is a lawyer practicing corporate law, mergers and acquisitions, finance and 1 other area of law
  • John received a degree from London Business School in 2007, and has been licensed for 26 years
  • John practices at Taft in Southfield, MI

Practice Areas Explained

John Peter Decker's Areas of Practice

Each practice area below reflects the types of cases John Peter Decker handles, with a brief overview of what that area of law covers.

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

John Peter Decker is one of 452,854 business attorneys indexed nationally. Browse business attorneys in Michigan →

Mergers & Acquisitions

John Peter Decker is one of 45,724 m&a attorneys indexed nationally. Browse m&a 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 Southfield 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 venue, 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 Southfield or all attorneys in Michigan.

Frequently Asked

Common questions about John Peter Decker

Where is John Peter Decker's law office located?
John Peter Decker's law practice is located in Southfield, Michigan. The firm is Taft. You can contact the office directly through this profile page.
What practice areas does John Peter Decker handle?
John Peter Decker focuses on business, m&a. Each practice area listed reflects experience handling cases of that type in Michigan.
How long has John Peter Decker practiced law?
John Peter Decker has 26+ years of legal experience and has been licensed since 2000.
Where did John Peter Decker go to law school?
John Peter Decker earned their education at (Masters, 2007); (J.D., 2000).
How can I contact John Peter Decker for a consultation?
You can contact John Peter Decker 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.

Education

Masters
London Business School
- 2007
J.D.
Harvard Law School
- 2000

Bar Admissions

Illinois
Admitted: 2000
Michigan
Admitted: 2003

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