Atty. Sean Siekkinen

Atty. Sean Siekkinen

Sean Siekkinen is a lawyer practicing products liability. Sean received a B.S. degree from Pennsylvania State University in 1999, and has been licensed for 18 years.

Chicago Chicago 18 yrs experience 18 year
Call (312) 796-6938 Book Appointment

Profile Summary

About Sean Siekkinen at a glance

Sean Siekkinen is an Associate based in Chicago, Illinois, practicing at Sidley Austin LLP. They have 18+ years of legal experience, licensed to practice since 2008. Their practice focuses on product liability. Admitted to practice in Illinois (2008), U.S. Court of Appeals, Third Circuit (2009), and U.S. District Court, Northern District of Illinois and U.S. Court of Appeals, Seventh Circuit (2010). Educated at Northwestern University School of Law (J.D., 2008) and Pennsylvania State University (B.S., 1999). Serands clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Sean Siekkinen is a lawyer practicing products liability
  • Sean received a B.S. degree from Pennsylvania State University in 1999, and has been licensed for 18 years
  • Sean practices at Sidley Austin LLP in Chicago, IL

Practice Areas Explained

Sean Siekkinen's Areas of Practice

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

Product Liability

Sean Siekkinen is one of 66,193 product liability attorneys indexed nationally. Browse product liability 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 Chicago 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 Chicago or all attorneys in Illinois.

Frequently Asked

Common questions about Sean Siekkinen

Where is Sean Siekkinen's law office located?
Sean Siekkinen's law practice is located in Chicago, Illinois. The firm is Sidley Austin LLP. You can contact the office directly through this profile page.
What practice areas does Sean Siekkinen handle?
Sean Siekkinen focuses on product liability. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Sean Siekkinen practiced law?
Sean Siekkinen has 18+ years of legal experience and has been licensed since 2008.
Where did Sean Siekkinen go to law school?
Sean Siekkinen earned their education at (J.D., 2008); (B.S., 1999).
How can I contact Sean Siekkinen for a consultation?
You can contact Sean Siekkinen 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.

Practice Areas

Education

J.D.
Northwestern University School of Law
- 2008
B.S.
Pennsylvania State University
- 1999

Bar Admissions

Illinois
Admitted: 2008
U.S. Court of Appeals, Third Circuit
Admitted: 2009
U.S. District Court, Northern District of Illinois and U.S. Court of Appeals, Seventh Circuit
Admitted: 2010

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