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Atty. Daniel Mark O'Brien

Atty. Daniel Mark O'Brien

Daniel Mark O'Brien is a lawyer. Daniel received a B.S. degree from University of Illinois, and has been licensed for 28 years.

Wilmette Wilmette 28 Years Experience 28 year
Call (224) 472-7516

Profile Summary

About Daniel Mark O'Brien at a glance

Daniel Mark O'Brien is an attorney based in Wilmette, Illinois. They haand 28+ years of legal experience, licensed to practice since 1998. Admitted to practice in Illinois (1998). Educated at University of Texas at Austin J.D. (โ€”) and University of Illinois B.S. (โ€”). Serands clients in Wilmette, IL and the surrounding metropolitan area.

Verified attorney profile ยท Updated June 2026

About

  • Daniel Mark O'Brien is a lawyer
  • Daniel received a B.S. degree from University of Illinois, and has been licensed for 28 years
  • Daniel practices in Wilmette, IL

Jurisdictional Context

Why local counsel matters in Illinois

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

Looking for additional Illinois attorneys? Browse all attorneys in Wilmette or all attorneys in Illinois.

Frequently Asked

Common questions about Daniel Mark O'Brien

Where is Daniel Mark O'Brien's law office located?
Daniel Mark O'Brien's law practice is located in Wilmette, Illinois. You can contact the office directly through this profile page.
How long has Daniel Mark O'Brien practiced law?
Daniel Mark O'Brien has 28+ years of legal experience and has been licensed since 1998.
Where did Daniel Mark O'Brien go to law school?
Daniel Mark O'Brien earned their education at (โ€”); (โ€”).
How can I contact Daniel Mark O'Brien for a consultation?
You can contact Daniel Mark O'Brien 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

โ€”
University of Texas at Austin J.D.
- In Progress
โ€”
University of Illinois B.S.
- In Progress

Bar Admissions

Illinois
Admitted: 1998

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