Atty. Mark A. Sisun

Atty. Mark A. Sisun

Mark A. Sisun is a lawyer practicing personal injury, litigation, personal injury/property.

Denver Denver 49 yrs experience 49 year
Call (303) 630-1448 Book Appointment

Profile Summary

About Mark A. Sisun at a glance

Mark A. Sisun is a Member based in Denver, Colorado, practforg at Sisun & Hemmerle PC. They have 49+ years of legal experience, licensed to practice since 1977. Their practice focuses on personal injury and litigation. Admitted to practice in Colorado (1977) and U.S. District Court, District of Colorado (1977). Educated at University of Colorado (J.D., 1977) and State University of New York at Binghamton (B.A., 1974). Recognitions include AV Preeminent. Active member of Denver Bar Association. Serands clients in Denver, CO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mark A. Sisun is a lawyer practicing personal injury, litigation, personal injury/property
  • Mark received a B.A. degree from State University of New York at Binghamton in 1974, and has been licensed for 49 years
  • Mark practices at Sisun & Hemmerle PC in Denver, CO

Practice Areas Explained

Mark A. Sisun's Areas of Practice

Each practice area below reflects the types of cases Mark A. Sisun 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 A. Sisun is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in Colorado →

Civil Litigation

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

Mark A. Sisun is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Colorado →

Jurisdictional Context

Why local counsel matters in Colorado

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

Looking for additional Colorado attorneys? Browse all attorneys in Denver or all attorneys in Colorado.

Frequently Asked

Common questions about Mark A. Sisun

Where is Mark A. Sisun's law office located?
Mark A. Sisun's law practice is located in Denver, Colorado. The firm is Sisun & Hemmerle PC. You can contact the office directly through this profile page.
What practice areas does Mark A. Sisun handle?
Mark A. Sisun focuses on personal injury, litigation. Each practice area listed reflects experience handling cases of that type in Colorado.
How long has Mark A. Sisun practiced law?
Mark A. Sisun has 49+ years of legal experience and has been licensed since 1977.
Where did Mark A. Sisun go to law school?
Mark A. Sisun earned their education at (J.D., 1977); (B.A., 1974).
How can I contact Mark A. Sisun for a consultation?
You can contact Mark A. Sisun 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 A. Sisun received?
Mark A. Sisun's notable recognition includes: AV Preeminent.

Education

J.D.
University of Colorado
- 1977
B.A.
State University of New York at Binghamton
- 1974

Awards

AV Preeminent

Bar Admissions

Colorado
Admitted: 1977
U.S. District Court, District of Colorado
Admitted: 1977

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