Atty. Mark Jonathan Hartzer

Atty. Mark Jonathan Hartzer

Mr. Mark Jonathan Hartzer is a lawyer practicing personal injury law, insurance coverage, bad faith law and 2 other areas of law.

Westmont Westmont 39 yrs experience 39 year
Call (224) 561-5759 Book Appointment

Profile Summary

About Mark Jonathan Hartzer at a glance

Mark Jonathan Hartzer is a Nationwide Mutual Insurance Company based in Westmont, Illinois. They have 39+ years of legal experience, licensed to practice since 1987. Their practice focuses on personal injury, environmental, and insurance. Admitted to practice in Texas (1987) and Illinois (2005). Educated at Oklahoma City University (J.D., 1984) and Western Illinois University (B.A., 1980). Serands clients in Westmont, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. Mark Jonathan Hartzer is a lawyer practicing personal injury law, insurance coverage, bad faith law and 2 other areas of law
  • Mark received a B.A. degree from Western Illinois University in 1980, and has been licensed for 39 years
  • Mark practices in Westmont, IL

Practice Areas Explained

Mark Jonathan Hartzer's Areas of Practice

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

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.

Mark Jonathan Hartzer is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in Illinois →

Environmental Law

Environmental attorneys for regulatory compliance, contamination, land use, and natural resource law.

Mark Jonathan Hartzer is one of 56,434 environmental attorneys indexed nationally. Browse environmental attorneys in Illinois →

Insurance Law

Insurance attorneys for coverage disputes, bad faith claims, denied claims, and policy disputes.

Mark Jonathan Hartzer is one of 121,912 insurance attorneys indexed nationally. Browse insurance 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 Westmont 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 Westmont or all attorneys in Illinois.

Frequently Asked

Common questions about Mark Jonathan Hartzer

Where is Mark Jonathan Hartzer's law office located?
Mark Jonathan Hartzer's law practice is located in Westmont, Illinois. You can contact the office directly through this profile page.
What practice areas does Mark Jonathan Hartzer handle?
Mark Jonathan Hartzer focuses on personal injury, environmental, insurance. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Mark Jonathan Hartzer practiced law?
Mark Jonathan Hartzer has 39+ years of legal experience and has been licensed since 1987.
Where did Mark Jonathan Hartzer go to law school?
Mark Jonathan Hartzer earned their education at (J.D., 1984); (B.A., 1980).
How can I contact Mark Jonathan Hartzer for a consultation?
You can contact Mark Jonathan Hartzer 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.
Oklahoma City University
- 1984
B.A.
Western Illinois University
- 1980

Bar Admissions

Texas
Admitted: 1987
Illinois
Admitted: 2005

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