Atty. Jay Timothy O'Brien

Atty. Jay Timothy O'Brien

Jay Timothy O'Brien is a lawyer practicing criminal law, family law, criminal defense. Jay received a B.S. degree from Western Illinois University in 1978, and has been licensed for 45 years.

Mokena Mokena 45 yrs experience 45 year
Call (312) 682-9551 Book Appointment

Profile Summary

About Jay Timothy O'Brien at a glance

Jay Timothy O'Brien is a criminal defense and family law attorney based in Mokena, Illinois. They have 45+ years of legal experience, licensed to practice since 1981. Admitted to practice in Illinois (1981). Educated at DePaul UNiversity (J.D., 1981) and Western Illinois University (B.S., 1978). Serands clients in Mokena, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Jay Timothy O'Brien is a lawyer practicing criminal law, family law, criminal defense
  • Jay received a B.S. degree from Western Illinois University in 1978, and has been licensed for 45 years
  • Jay practices in Mokena, IL

Practice Areas Explained

Jay Timothy O'Brien's Areas of Practice

Each practice area below reflects the types of cases Jay Timothy O'Brien handles, with a brief overview of what that area of law covers.

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.

Jay Timothy O'Brien is one of 214,271 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Illinois →

Family Law

Family law attorneys handle divorce, child custody, child support, adoption, prenups, and protective orders. Find verified family lawyers near you.

Jay Timothy O'Brien is one of 187,066 family law attorneys indexed nationally. Browse family law attorneys in Illinois →

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 Mokena 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 Mokena or all attorneys in Illinois.

Frequently Asked

Common questions about Jay Timothy O'Brien

Where is Jay Timothy O'Brien's law office located?
Jay Timothy O'Brien's law practice is located in Mokena, Illinois. You can contact the office directly through this profile page.
What practice areas does Jay Timothy O'Brien handle?
Jay Timothy O'Brien focuses on criminal defense, family law. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Jay Timothy O'Brien practiced law?
Jay Timothy O'Brien has 45+ years of legal experience and has been licensed since 1981.
Where did Jay Timothy O'Brien go to law school?
Jay Timothy O'Brien earned their education at (J.D., 1981); (B.S., 1978).
How can I contact Jay Timothy O'Brien for a consultation?
You can contact Jay Timothy 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

J.D.
DePaul UNiversity
- 1981
B.S.
Western Illinois University
- 1978

Bar Admissions

Illinois
Admitted: 1981

Reviews

3.9
7 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.