Atty. David Christopher Sienko

Atty. David Christopher Sienko

Atty. David Christopher Sienko is a lawyer practicing corporate & incorporation, securities & investment fraud, capital markets and 2 other areas of law.

Chicago Chicago 32 yrs experience 32 year
Call (224) 561-4433 Book Appointment

Profile Summary

About David Christopher Sienko at a glance

David Christopher Sienko is a Hecla Mining Company based in Chicago, Illinois. They have 32+ years of legal experience, licensed to practice since 1994. Their practice focuses on formation, business, securities, consumer, and government. Admitted to practice in Wisconsin (1994) and Illinois U.S. District Court, Northern District of Texas U.S. District Court, Northern District of I (2000). Educated at Georgetown University Law Center (LL.M. Marquette, 1997) and Oberlin College (B.A., 1990). Serands clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Atty. David Christopher Sienko is a lawyer practicing corporate & incorporation, securities & investment fraud, capital markets and 2 other areas of law
  • David received a B.A. degree from Oberlin College in 1990, and has been licensed for 32 years
  • David practices in Chicago, IL

Practice Areas Explained

David Christopher Sienko's Areas of Practice

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

Business Formation

David Christopher Sienko is one of 35,584 formation attorneys indexed nationally. Browse formation attorneys in Illinois →

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

David Christopher Sienko is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Illinois →

Securities Law

David Christopher Sienko is one of 64,529 securities attorneys indexed nationally. Browse securities attorneys in Illinois →

Consumer Protection

Consumer protection attorneys for fraud, lemon law, debt harassment, and deceptive trade practices.

David Christopher Sienko is one of 50,607 consumer attorneys indexed nationally. Browse consumer attorneys in Illinois →

Government & Administrative Law

Attorneys for administrative law, agency hearings, government contracts, licensing, and public benefits.

David Christopher Sienko is one of 132,225 government attorneys indexed nationally. Browse government 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 David Christopher Sienko

Where is David Christopher Sienko's law office located?
David Christopher Sienko's law practice is located in Chicago, Illinois. You can contact the office directly through this profile page.
What practice areas does David Christopher Sienko handle?
David Christopher Sienko focuses on formation, business, securities, consumer, government. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has David Christopher Sienko practiced law?
David Christopher Sienko has 32+ years of legal experience and has been licensed since 1994.
Where did David Christopher Sienko go to law school?
David Christopher Sienko earned their education at (LL.M. Marquette, 1997); (B.A., 1990).
How can I contact David Christopher Sienko for a consultation?
You can contact David Christopher Sienko 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

LL.M. Marquette
Georgetown University Law Center
- 1997
B.A.
Oberlin College
- 1990

Bar Admissions

Wisconsin
Admitted: 1994
Illinois U.S. District Court, Northern District of Texas U.S. District Court, Northern District of I
Admitted: 2000

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