Atty. Mark L. Langenfeld

Atty. Mark L. Langenfeld

Mark L. Langenfeld is a lawyer practicing commercial litigation, products liability litigation, aviation litigation and 3 other areas of law.

Monticello Monticello 41 yrs experience 41 year
Call (608) 621-5466 Book Appointment

Profile Summary

About Mark L. Langenfeld at a glance

Mark L. Langenfeld is a business, ip, litigation, and aviation attorney based in Monticello, Wisconsin. They have 41+ years of legal experience, licensed to practice since 1985. Admitted to practice in Wisconsin (1985) and U.S. District Court, Eastern and Western Districts of Wisconsin and U.S. Court of Appeals, Seventh C (1985). Educated at University of Wisconsin-Madison (J.D., 1985) and University of Wisconsin-Madison (B.A., 1970). Recognitions include AV Preeminent. Serands clients in Monticello, WI and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark L. Langenfeld is a lawyer practicing commercial litigation, products liability litigation, aviation litigation and 3 other areas of law
  • Mark received a B.A. degree from University of Wisconsin-Madison in 1970, and has been licensed for 41 years
  • Mark practices in Monticello, WI

Practice Areas Explained

Mark L. Langenfeld's Areas of Practice

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

Business & Corporate Law

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

Mark L. Langenfeld is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Wisconsin →

Intellectual Property

IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.

Mark L. Langenfeld is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in Wisconsin →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Mark L. Langenfeld is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Wisconsin →

Aviation Law

Aviation attorneys for aircraft accidents, FAA regulation, pilot defense, and aviation industry matters.

Mark L. Langenfeld is one of 9,225 aviation attorneys indexed nationally. Browse aviation attorneys in Wisconsin →

Jurisdictional Context

Why local counsel matters in Wisconsin

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

Looking for additional Wisconsin attorneys? Browse all attorneys in Monticello or all attorneys in Wisconsin.

Frequently Asked

Common questions about Mark L. Langenfeld

Where is Mark L. Langenfeld's law office located?
Mark L. Langenfeld's law practice is located in Monticello, Wisconsin. You can contact the office directly through this profile page.
What practice areas does Mark L. Langenfeld handle?
Mark L. Langenfeld focuses on business, ip, litigation, aviation. Each practice area listed reflects experience handling cases of that type in Wisconsin.
How long has Mark L. Langenfeld practiced law?
Mark L. Langenfeld has 41+ years of legal experience and has been licensed since 1985.
Where did Mark L. Langenfeld go to law school?
Mark L. Langenfeld earned their education at (J.D., 1985); (B.A., 1970).
How can I contact Mark L. Langenfeld for a consultation?
You can contact Mark L. Langenfeld 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 L. Langenfeld received?
Mark L. Langenfeld's notable recognition includes: AV Preeminent.

Education

J.D.
University of Wisconsin-Madison
- 1985
B.A.
University of Wisconsin-Madison
- 1970

Awards

AV Preeminent

Bar Admissions

Wisconsin
Admitted: 1985
U.S. District Court, Eastern and Western Districts of Wisconsin and U.S. Court of Appeals, Seventh C
Admitted: 1985

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