Top-Tier Advocacy In High-Stakes Cases

About Our Pennsylvania Law Firm

For over 20 years, the law firm of Difenderfer, Rothman, Haber & Mancuso, P.C. has built a reputation as the premier criminal defense firm in Pittsburgh, Pennsylvania. With a combined experience of over 100 years, our lawyers have handled every type of criminal charge, ranging from the least severe in nature to the most violent of felonies including death penalty cases. Our firm focuses solely on criminal defense, handling matters in both state and federal court throughout western Pennsylvania.

We represent people from all spectrums of society, from blue collar to white collar, including doctors, nurses, financial advisors to contractors and professional drivers. For the past two decades, the attorneys at Difenderfer, Rothman, Haber & Mancuso, P.C. have thrived in the criminal defense field not because of savvy marketing skills or billboards with catchy slogans – but for one reason: they are aggressive lawyers who try cases and win.

Who We Are

Difenderfer, Rothman, Haber & Mancuso, P.C. has been a highly respected name in Allegheny County and the surrounding areas for decades. With an office stationed close to the Allegheny County Courthouse, the Pittsburgh Municipal Court and the Allegheny County Jail, we are a strong presence in the Pittsburgh community. Each one of our attorneys maintains a well-earned reputation for their exceptional trial skills, in-depth legal knowledge and professionalism. Read more about our lawyers and their accomplishments by clicking on their names below.

William H. Difenderfer

Mr. Difenderfer has been licensed to practice law for more than 35 years. After graduating from the Ohio Northern University Petit College of Law, he was admitted to the Pennsylvania Bar in 1983. Every year from 2017 to 2020, he has been honored with inclusion in Super Lawyers.

Read More ➤

Lee M. Rothman

Mr. Rothman was admitted to the Pennsylvania Bar in 1996. For more than 20 years, he has worked on some of Pennsylvania’s most high-profile cases. He has successfully defended individuals charged with even the most serious felonies.

Read More ➤

Kenneth J. Haber

A former prosecutor, Mr. Haber has nearly three decades of experience practicing law. Over the course of his career, Mr. Haber has developed a reputation for being a zealous trial lawyer, having won rare acquittals in both death penalty cases and federal jury trials. Mr. Haber is also well-known for pushing the envelope on search and seizure issues, relentless in the fight to protect his clients’ rights.

Read More ➤

Anne Marie Mancuso

Dedicating her legal career to the area criminal defense work, Ms. Mancuso has successfully defended against countless criminal prosecutions, obtaining not guilty verdicts in numerous violent crimes, sex crimes and gun related cases, as well as the dismissal of homicide charges.

Read More ➤

The Clients We Represent

With a long list of accolades and a record of results, we are a trusted choice to represent athletes, business professionals, doctors and a wide array of other individuals facing criminal charges. Such charges include but are not limited to:

  • Homicide
  • Sex crimes
  • Internet crimes
  • Child abuse
  • College student crimes
  • Violent offenses
  • Firearm charges
  • Drug charges
  • Federal offenses
  • White collar crimes

Our attorneys provide the same exceptional level of service to every client who retains our firm, whether they are charged with a misdemeanor or first-degree murder. We understand that any criminal charge is the most serious problem in our clients’ lives and in the lives of their families. We believe that every person deserves the best legal representation possible. This means that when you work with our law firm, we will meticulously examine every dimension of your case, the charges against you, the available defenses, and your personal goals. We then create a defense strategy that is specifically tailored to you.

We also employ a dedicated and talented support staff that is as committed to your success as we are. We promise that, even when we are in court fighting for others, you and your case receive prompt, compassionate attention. In every case, we strive for excellence. To learn more about Difenderfer, Rothman, Haber & Mancuso, P.C. or to initiate a discussion about your case, call (412) 338-9990 or contact us via email.