Atty. Dennis Patrick O'Sullivan

Atty. Dennis Patrick O'Sullivan

Dennis Patrick O'Sullivan is a lawyer. Dennis received a B.A. degree from Loras College, and has been licensed for 53 years.

Belvidere Belvidere 53 yrs experience 53 year
Call (779) 323-0117 Book Appointment

Profile Summary

About Dennis Patrick O'Sullivan at a glance

Dennis Patrick O'Sullivan is an attorney based in Belvidere, Illinois. They have 53+ years of legal experience, licensed to practice since 1973. Admitted to practice in Illinois (1973). Educated at Creighton University J.D. (—) and Loras College B.A. (—). Recognitions include CV Notable. Serands clients in Belvidere, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Dennis Patrick O'Sullivan is a lawyer
  • Dennis received a B.A. degree from Loras College, and has been licensed for 53 years
  • Dennis practices in Belvidere, IL

Jurisdictional Context

Why local counsel matters in Illinois

Practicing law in Illinois. Legal matters in Illinois are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Belvidere 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 substantive 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 Belvidere or all attorneys in Illinois.

Frequently Asked

Common questions about Dennis Patrick O'Sullivan

Where is Dennis Patrick O'Sullivan's law office located?
Dennis Patrick O'Sullivan's law practice is located in Belvidere, Illinois. You can contact the office directly through this profile page.
How long has Dennis Patrick O'Sullivan practiced law?
Dennis Patrick O'Sullivan has 53+ years of legal experience and has been licensed since 1973.
Where did Dennis Patrick O'Sullivan go to law school?
Dennis Patrick O'Sullivan earned their education at (—); (—).
How can I contact Dennis Patrick O'Sullivan for a consultation?
You can contact Dennis Patrick O'Sullivan 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 Dennis Patrick O'Sullivan received?
Dennis Patrick O'Sullivan's notable recognition includes: CV Notable.

Education

Creighton University J.D.
- In Progress
Loras College B.A.
- In Progress

Awards

CV Notable

Bar Admissions

Illinois
Admitted: 1973

Reviews

2.9
1 Review
5 0
4 0
3 0
2 0
1 0
These reviews belong to platform users; they do not constitute advertisement or promotion for the attorney. Opinions are published for informational purposes only.

No reviews yet.