Atty. Patrick Sean O'Shaughnessy

Atty. Patrick Sean O'Shaughnessy

Patrick Sean O'Shaughnessy is a lawyer practicing personal injury, medical malpractice, construction / development. Patrick has been licensed for 30 years.

Peoria Peoria 30 yrs experience 30 year
Call (309) 424-4823 Book Appointment

Profile Summary

About Patrick Sean O'Shaughnessy at a glance

Patrick Sean O'Shaughnessy is an Attorney based in Peoria, Illinois, practicing at Janssen Law Center. They have 30+ years of legal experience, licensed to practice since 1996. Their practice focuses on medical malpractice and personal injury. Admitted to practice in Illinois (1996). Serands clients in Peoria, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Patrick Sean O'Shaughnessy is a lawyer practicing personal injury, medical malpractice, construction / development
  • Patrick has been licensed for 30 years
  • Patrick practices at Janssen Law Center in Peoria, IL

Practice Areas Explained

Patrick Sean O'Shaughnessy's Areas of Practice

Each practice area below reflects the types of cases Patrick Sean O'Shaughnessy handles, with a brief overview of what that area of law covers.

Medical Malpractice

Medical malpractice lawyers represent patients harmed by negligent doctors, hospitals, and other providers. Free case review, no fee unless you win.

Patrick Sean O'Shaughnessy is one of 49,086 medical malpractice attorneys indexed nationally. Browse medical malpractice attorneys in Illinois →

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.

Patrick Sean O'Shaughnessy is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury 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 Peoria 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 Peoria or all attorneys in Illinois.

Frequently Asked

Common questions about Patrick Sean O'Shaughnessy

Where is Patrick Sean O'Shaughnessy's law office located?
Patrick Sean O'Shaughnessy's law practice is located in Peoria, Illinois. The firm is Janssen Law Center. You can contact the office directly through this profile page.
What practice areas does Patrick Sean O'Shaughnessy handle?
Patrick Sean O'Shaughnessy focuses on medical malpractice, personal injury. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Patrick Sean O'Shaughnessy practiced law?
Patrick Sean O'Shaughnessy has 30+ years of legal experience and has been licensed since 1996.
How can I contact Patrick Sean O'Shaughnessy for a consultation?
You can contact Patrick Sean O'Shaughnessy 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.

Bar Admissions

Illinois
Admitted: 1996

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