Atty. Mark G. Niesen

Atty. Mark G. Niesen

In my free time I enjoy spending tine with my wife and 3 daughters, hunting, and volunteering at my church. I am a Zeta Psi.

St. Louis St. Louis 19 yrs experience 19 year
Call (314) 860-1477 Book Appointment

Profile Summary

About Mark G. Niesen at a glance

Mark G. Niesen is an Associate Counsel based in St. Louis, Missouri, practicing at Law Offices of Frank J. Niesen, Jr.. They have 19+ years of legal experience, licensed to practice since 2007. Their practice focuses on wills, probate, wrongful death, personal injury, and estate planning. Admitted to practice in Missouri (2007) and Illinois (2008). Educated at St. Louis University (J.D. Tulane, 2007). Active member of American Bar Association. Serands clients in St. Louis, MO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • In my free time I enjoy spending tine with my wife and 3 daughters, hunting, and volunteering at my church
  • I am a Zeta Psi

Practice Areas Explained

Mark G. Niesen's Areas of Practice

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

Wills

Mark G. Niesen is one of 34,541 wills attorneys indexed nationally. Browse wills attorneys in Missouri →

Probate

Mark G. Niesen is one of 128,014 probate attorneys indexed nationally. Browse probate attorneys in Missouri →

Wrongful Death

Mark G. Niesen is one of 31,253 wrongful death attorneys indexed nationally. Browse wrongful death attorneys in Missouri →

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 G. Niesen is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in Missouri →

Estate Planning & Probate

An estate planning attorney prepares wills, trusts, powers of attorney, and healthcare directives to protect your family and pass on your assets.

Mark G. Niesen is one of 226,536 estate planning attorneys indexed nationally. Browse estate planning attorneys in Missouri →

Jurisdictional Context

Why local counsel matters in Missouri

Practicing law in Missouri. Legal matters in Missouri are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in St. Louis are typically filed in the local municipal court or the appropriate Missouri state district court, depending on subject matter and amount in controversy. An attorney licensed in Missouri 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 Missouri courts without local counsel or pro hac vice admission.

Looking for additional Missouri attorneys? Browse all attorneys in St. Louis or all attorneys in Missouri.

Frequently Asked

Common questions about Mark G. Niesen

Where is Mark G. Niesen's law office located?
Mark G. Niesen's law practice is located in St. Louis, Missouri. The firm is Law Offices of Frank J. Niesen, Jr.. You can contact the office directly through this profile page.
What practice areas does Mark G. Niesen handle?
Mark G. Niesen focuses on wills, probate, wrongful death, personal injury, estate planning. Each practice area listed reflects experience handling cases of that type in Missouri.
How long has Mark G. Niesen practiced law?
Mark G. Niesen has 19+ years of legal experience and has been licensed since 2007.
Where did Mark G. Niesen go to law school?
Mark G. Niesen earned their education at (J.D. Tulane, 2007).
How can I contact Mark G. Niesen for a consultation?
You can contact Mark G. Niesen 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. Tulane
St. Louis University
- 2007

Bar Admissions

Missouri
Admitted: 2007
Illinois
Admitted: 2008

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