Atty. John William Greven

Atty. John William Greven

John William Greven is a lawyer practicing advertising, criminal law, driving while intoxicated and 1 other area of law. John received a M.S.Ed. degree from Elmira College, Elmira, New York in 1994, and has been licensed for 32 years.

Akron Akron 32 J. Erfahrung 32 year
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Profile Summary

About John William Greven at a glance

John William Greven is a Member based in Akron, Ohio, practicing at Callahan, Greven, Rilley and Sinn, LLC. They have 32+ years of legal experience, licensed to practice since 1994. Their practice focuses on dui/dwi, personal injury, criminal defense, and entertainment. Admitted to practice in Ohio (1994) and U.S. District Court, Northern District of Ohio (2001). Educated at Cleveland-Marshall College of Law (J.D., 1994) and Elmira College, Elmira, New York (M.S.Ed. State, 1994). Recognitions include BV Distinguished. Active member of Akron and Ohio State Bar Associations. Serands clients in Akron, OH and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

Über uns

  • John William Greven is a lawyer practicing advertising, criminal law, driving while intoxicated and 1 other area of law
  • John received a M.S.Ed. degree from Elmira College, Elmira, New York in 1994, and has been licensed for 32 years
  • John practices at Callahan, Greven, Rilley and Sinn, LLC in Akron, OH

Practice Areas Explained

John William Greven's Areas of Practice

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

DUI / DWI Defense

Find experienced DUI and DWI defense attorneys near you. Compare verified profiles, read client reviews, and consult about your case for free.

John William Greven is one of 29,976 dui/dwi attorneys indexed nationally. Browse dui/dwi attorneys in Ohio →

Personal Injury

Personal injury attorneys help accident victims recover compensation for medical bills, lost wages, and pain & suffering. Most work on contingency — no fee unless you win.

John William Greven is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in Ohio →

Criminal Defense

A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.

John William Greven is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Ohio →

Entertainment & Sports Law

Entertainment lawyers for music, film, sports contracts, talent representation, and IP licensing.

John William Greven is one of 45,946 entertainment attorneys indexed nationally. Browse entertainment attorneys in Ohio →

Jurisdictional Context

Why local counsel matters in Ohio

Practicing law in Ohio. Legal matters in Ohio are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Akron are typically filed in the local municipal court or the appropriate Ohio state district court, depending on subject matter and amount in controversy. An attorney licensed in Ohio 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 Ohio courts without local counsel or pro hac vice admission.

Looking for additional Ohio attorneys? Browse all attorneys in Akron or all attorneys in Ohio.

Frequently Asked

Common questions about John William Greven

Where is John William Greven's law office located?
John William Greven's law practice is located in Akron, Ohio. The firm is Callahan, Greven, Rilley and Sinn, LLC. You can contact the office directly through this profile page.
What practice areas does John William Greven handle?
John William Greven focuses on dui/dwi, personal injury, criminal defense, entertainment. Each practice area listed reflects experience handling cases of that type in Ohio.
How long has John William Greven practiced law?
John William Greven has 32+ years of legal experience and has been licensed since 1994.
Where did John William Greven go to law school?
John William Greven earned their education at (J.D., 1994); (M.S.Ed. State, 1994).
How can I contact John William Greven for a consultation?
You can contact John William Greven 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 John William Greven received?
John William Greven's notable recognition includes: BV Distinguished.

Education

J.D.
Cleveland-Marshall College of Law
- 1994
M.S.Ed. State
Elmira College, Elmira, New York
- 1994

Awards

BV Distinguished

Bar Admissions

Ohio
Admitted: 1994
U.S. District Court, Northern District of Ohio
Admitted: 2001

Bewertungen

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