Firm Overview

Firm Overview

Our Denver Criminal Defense Law Firm Fights for JUSTICE

Firm Background

We began our careers as public defenders. We each chose that route because we were passionate about criminal defense and specifically, protecting our clients’ rights from government infringement.

Thirty-five years later and very little has changed. We joined forces and formed this firm based on the common goal of providing the best, most aggressive and comprehensive representation possible. Our fire for justice and protecting the rights of our clients burns as brightly as ever.

We believe that our respective skill sets and areas of expertise set us apart from other firms. Our practice is comprehensive in that we handle:

  • Pre-File Investigations (Client is under investigation. A decision about charges has not been made);
  • Criminal defense at the trial level in every municipal, state, and federal court;
  • Appeals of criminal convictions;
  • Post-Conviction or Rule 35c / Ineffective of Assistance of Counsel Claims;
  • Civil Rights Claims.

In his 30 plus years of practice, Patrick Mulligan has become one of the most respected appellate and post-conviction attorneys not only in the state of Colorado but nationwide.

Marshall Breit was born and raised in Denver. He is widely regarded as a top sexual assault litigation attorney throughout the state.

Pre-File Investigations, Trials, appeals, post-conviction, and civil rights litigation with more than 50 years combined experience.

Mulligan Breit, LLC is committed exclusively to defending our client’s rights through criminal defense and in civil rights litigation. Our unrelenting advocacy on behalf of our clients’ rights is the foundation of our law firm. We represent clients charged with crimes at the trial level, on appeal, in post-conviction proceedings, and in civil rights litigation.

Our firm focuses on zealous, client-centered, representation. We are results driven and work tirelessly to keep the justice system in check. We are former public defenders who passionately believe in protecting the constitutional rights of our clients.

Pre-File Investigations, Trials, appeals, post-conviction, and civil rights litigation with more than 50 years combined experience.

What sets us apart is that we handle cases at each phase of the judicial process. This allows us to give you complete options for defending your rights. Lawyers with extensive experience in the following areas are best positioned to assist you in your case:


We provide a strong criminal defense for clients accused of crimes. We engage in strategic plea negotiations with prosecutors when appropriate and prepare for every case as though we intend to take it to trial. We work with a team when required to comprehensively tackle the issues presented. In the courtroom, we present a thorough, persuasive case to the jury and judge.


We present persuasive appeals for clients who are found guilty at trial. If we represent you at the trial stage, we are prepared to file your brief immediately. If another attorney defended you in a trial, we review your transcripts to determine whether appealable issues were preserved.

Post-conviction litigation

Rule 35(c) litigation is based on a Colorado statute that gives you the chance to pursue another trial if you are convicted and your appeals are exhausted. Popularly referred to as habeas corpus, post-conviction relief proceedings are crucial if you face a long prison sentence or the death penalty for a major felony.

Civil Rights Litigation

You do not have to be charged with a crime for your civil rights to be violated. Our expert litigation experience, knowledge of the justice system, and understanding of the constitutional rights of our clients puts us in a unique position to vindicate our client’s rights in a civil lawsuit. We bring our extensive criminal law experience to civil rights cases, especially those involving the wrongful actions of law enforcement and police.

A noteworthy case involving trial, appeal and post-trial Rule 35(c) litigation:

Our client was a juvenile charged with second-degree sexual assault. Through a series of pre-trial motions, we won suppression of evidence based on police misconduct. The prosecution appealed the suppression ruling to the Colorado Supreme Court, and we successfully handled the appeal in People v. A.W. 982 P.2d 842 (Colo 1999). The case was remanded to the district court for trial. After a hard-fought trial by jury, the client was found not guilty of all charges. Utilizing the victory and ruling on police misconduct, we then represented the client in a civil rights lawsuit against the police and the offending city in federal district court. We won a substantial settlement for our client, and the client went on to pursue a college education.

We are criminal defense attorneys who advocate for justice on behalf of our clients.