Atty. Mark Alan Keersemaker

Atty. Mark Alan Keersemaker

Mark Alan Keersemaker is a lawyer practicing business and corporations, car accidents, criminal law and 24 other areas of law. Mark received a B.A. degree from Guilford College in 1995, and has been licensed for 27 years.

St. Louis St. Louis 27 yrs experience 27 year
Call (913) 399-2481 Book Appointment

Business And Corporations & More Attorney · Serving St. Louis, MO · 27+ Years Experience

Profile Summary

About Mark Alan Keersemaker at a Glance

Mark Alan Keersemaker is a Member based in St. Louis, Missouri, practicing at The Keersemaker Law Firm, P.C.. They have 27+ years of legal experience, licensed to practice since 1999. Their practice focuses on car accidents, dui/dwi, truck accidents, medical malpractice, and wrongful death. Admitted to practice in Missouri (1999). Educated at University of Missouri (J.D., 1999) and Guilford College (B.A., 1995). Active member of Bar Association of Metropolitan St, Louis The Missouri Bar American Bar Association Lawyers Association of St, and Louis Missouri Association of Trial Attorneys Association of Trial Lawyers of America. Serves clients in St. Louis, MO and the surrounding metropolitan area.

Verified attorney profile · Updated October 2026

About Mark Alan Keersemaker

  • Mark Alan Keersemaker is a lawyer practicing business and corporations, car accidents, criminal law and 24 other areas of law
  • Mark received a B.A. degree from Guilford College in 1995, and has been licensed for 27 years
  • Mark practices at The Keersemaker Law Firm, P.C. in St. Louis, MO

Practice Areas Explained

Mark Alan Keersemaker's Areas of Legal Practice

Each practice area below reflects the types of cases Mark Alan Keersemaker handles, with a practical overview of what that area of law involves and how it may apply to your situation in St. Louis.

Car Accidents in St. Louis

Hurt in a car crash? Car accident lawyers fight insurance companies for fair compensation — free consult, no fee unless you win.

Mark Alan Keersemaker is one of 36,434 car accidents attorneys indexed nationally. Browse car accidents attorneys in Missouri →

DUI / DWI Defense in St. Louis

Find experienced DUI and DWI defense attorneys near you. Compare verified profiles, read client reviews, and consult about your case for free.

Mark Alan Keersemaker is one of 29,739 dui/dwi attorneys indexed nationally. Browse dui/dwi attorneys in Missouri →

Truck Accidents in St. Louis

Mark Alan Keersemaker is one of 4,910 truck accidents attorneys indexed nationally. Browse truck accidents attorneys in Missouri →

Medical Malpractice in St. Louis

Medical malpractice lawyers represent patients harmed by negligent doctors, hospitals, and other providers. Free case review, no fee unless you win.

Mark Alan Keersemaker is one of 48,593 medical malpractice attorneys indexed nationally. Browse medical malpractice attorneys in Missouri →

Wrongful Death in St. Louis

Mark Alan Keersemaker is one of 30,932 wrongful death attorneys indexed nationally. Browse wrongful death attorneys in Missouri →

Jurisdictional Context

Why Local Counsel Matters in St. Louis

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 venue, 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.

St. Louis Courts and Legal Process

Choosing a St. Louis-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.

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

Frequently Asked

Common Questions About Mark Alan Keersemaker

Where is Mark Alan Keersemaker's law office located?
Mark Alan Keersemaker's law practice is located in St. Louis, Missouri. The firm is The Keersemaker Law Firm, P.C.. You can contact the office directly through this profile page.
What practice areas does Mark Alan Keersemaker handle?
Mark Alan Keersemaker focuses on car accidents, dui/dwi, truck accidents, medical malpractice, wrongful death. Each practice area listed reflects experience handling cases of that type in Missouri.
How long has Mark Alan Keersemaker practiced law?
Mark Alan Keersemaker has 27+ years of legal experience and has been licensed since 1999.
Where did Mark Alan Keersemaker go to law school?
Mark Alan Keersemaker earned their education at (J.D., 1999); (B.A., 1995).
How can I contact Mark Alan Keersemaker for a consultation?
You can contact Mark Alan Keersemaker 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.

Professional Profile

Why Clients in St. Louis Choose Mark Alan Keersemaker

Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Mark Alan Keersemaker's practice in the field of car accidents, dui/dwi, truck accidents, medical malpractice, and wrongful death.

Decade-Tested Legal Experience

Mark Alan Keersemaker brings 27+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.

Broad Practice Area Coverage

Covering car accidents, dui/dwi, and truck accidents, Mark Alan Keersemaker can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.

Local Presence in St. Louis

A St. Louis-based practice means Mark Alan Keersemaker attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.

Case Types

Common Legal Issues Mark Alan Keersemaker Handles in St. Louis

Below is a representative sample of the types of matters Mark Alan Keersemaker has experience with under Missouri law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.

Surgical error claims
Medical Malpractice
Misdiagnosis and delayed diagnosis
Medical Malpractice
Birth injury lawsuits
Medical Malpractice
Hospital negligence
Medical Malpractice

This list is illustrative, not exhaustive. Contact Mark Alan Keersemaker directly to discuss the specifics of your situation.

Search Reference

How People Find Mark Alan Keersemaker Online

Prospective clients searching for legal help in St. Louis commonly use a combination of the attorney's name and their specific legal need. The following search terms frequently lead people to this profile and to attorneys like Mark Alan Keersemaker.

Mark Alan Keersemaker attorney Mark Alan Keersemaker lawyer Mark Alan Keersemaker St. Louis Mark Alan Keersemaker Missouri Mark Alan Keersemaker reviews Mark Alan Keersemaker contact The Keersemaker Law Firm, P.C. law firm car accidents attorney in St. Louis car accidents lawyer St. Louis best car accidents attorney St. Louis top rated car accidents lawyer near me car accidents attorney Missouri find a lawyer near me how to hire an attorney

If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with Mark Alan Keersemaker directly.

Education & Law School Background

J.D.
University of Missouri
- 1999
B.A.
Guilford College
- 1995

Bar Admissions & Licensed Jurisdictions

Missouri
Admitted: 1999

Client Reviews & Ratings — Mark Alan Keersemaker

These reviews belong to platform users; they do not constitute advertisement or promotion for the attorney. Opinions are published for informational purposes only.

No reviews yet.