Av. Mark D. Thielen

Av. Mark D. Thielen

Mark D. Thielen is a lawyer practicing corporate & incorporation, commercial, tax and 5 other areas of law.

Jacksonville Jacksonville 38 Yıl Deneyim 38 yıl
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Profile Summary

About Mark D. Thielen at a glance

Mark D. Thielen is a Member based in Jacksonville, Illinois, practicing at McNeely Crews Hurst & Thielen PC. They have 38+ years of legal experience, licensed to practice since 1988. Their practice focuses on formation, child custody, business, bankruptcy, and tax. Admitted to practice in Illinois (1988) and U.S. District Court, Central District of Illinois U.S. Tax Court (1991). Educated at Southern Illinois University, Carbondale (J.D., 1988) and University of South Dakota (B.S., 1985). Recognitions include Peer Reviewed. Active member of Sangamon County and Illinois State Bar Associations. Serands clients in Jacksonville, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

Hakkında

  • Mark D. Thielen is a lawyer practicing corporate & incorporation, commercial, tax and 5 other areas of law
  • Mark received a B.S. degree from University of South Dakota in 1985, and has been licensed for 38 years
  • Mark practices at McNeely Crews Hurst & Thielen PC in Jacksonville, IL

Practice Areas Explained

Mark D. Thielen's Areas of Practice

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

Business Formation

Mark D. Thielen is one of 35,584 formation attorneys indexed nationally. Browse formation attorneys in Illinois →

Child Custody & Visitation

Mark D. Thielen is one of 31,241 child custody attorneys indexed nationally. Browse child custody attorneys in Illinois →

Business & Corporate Law

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

Mark D. Thielen is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Illinois →

Bankruptcy & Debt

A bankruptcy attorney can help you eliminate debt, stop creditor harassment, and protect your home through Chapter 7 or Chapter 13.

Mark D. Thielen is one of 105,321 bankruptcy attorneys indexed nationally. Browse bankruptcy attorneys in Illinois →

Tax Law

Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.

Mark D. Thielen is one of 85,302 tax attorneys indexed nationally. Browse tax 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 Jacksonville 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 Jacksonville or all attorneys in Illinois.

Frequently Asked

Common questions about Mark D. Thielen

Where is Mark D. Thielen's law office located?
Mark D. Thielen's law practice is located in Jacksonville, Illinois. The firm is McNeely Crews Hurst & Thielen PC. You can contact the office directly through this profile page.
What practice areas does Mark D. Thielen handle?
Mark D. Thielen focuses on formation, child custody, business, bankruptcy, tax. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Mark D. Thielen practiced law?
Mark D. Thielen has 38+ years of legal experience and has been licensed since 1988.
Where did Mark D. Thielen go to law school?
Mark D. Thielen earned their education at (J.D., 1988); (B.S., 1985).
How can I contact Mark D. Thielen for a consultation?
You can contact Mark D. Thielen 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 Mark D. Thielen received?
Mark D. Thielen's notable recognition includes: Peer Reviewed.

Eğitim

J.D.
Southern Illinois University, Carbondale
- 1988
B.S.
University of South Dakota
- 1985

Ödüller

Peer Reviewed

Bar Admissions

Illinois
Admitted: 1988
U.S. District Court, Central District of Illinois U.S. Tax Court
Admitted: 1991

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