Markus/Moss PLLC


Markus/Moss is a nationally-recognized trial and appellate boutique law firm known for taking on and winning difficult criminal defense cases. The Firm’s lawyers accept only a small number of high-stakes cases at any given time so that they can dedicate their full attention to every client. The Firm’s founder, David Oscar Markus, is a Harvard-educated lawyer who has been described as “wickedly smart and a terrific trial lawyer.” His clients say that he is “the whole package” and “a creative, courageous and tenacious courtroom advocate.”

The Firm handles a wide variety of criminal defense matters, with an emphasis in representing business-people and professionals in federal white-collar investigations, prosecutions and appeals around the country.  For example, Markus/Moss has successfully represented CEOs in complex criminal antitrust cases and fraud cases, doctors in health care fraud cases, lawyers in mortgage fraud cases, a U.S. Congressman in an election fraud investigation, and so on.

Markus/Moss is also widely recognized for its successful and creative work in Florida state courts, which include RICO prosecutions, DUI Manslaughter cases, gambling matters and others.

The Firm has a reputation for its skill in handling high-profile matters both in court and in the media if need be.  It has successfully represented numerous high-profile clients, including athletes in all major sports, politicians, movie directors, chefs, and the like, making sure that their reputations are intact after the case is concluded.

Although many of the Firm’s cases are resolved without charges ever being brought (and therefore remain confidential), this website will give you a small sample of some of the public cases that the Firm has handled.  To learn more, please click here.



Recent Victories
  • Jury finds medical doctor NOT guilty in federal trial.  Press coverage here.
  • Jury finds lab owner NOT guilty of 83 counts in federal health care trial in Kentucky (April 2017).
  • The Firm is representing former Colombian Presidential candidate Andres Arias.  Review updates here.
  • David Markus was able to get former Baltimore Orioles’ outfielder Delmon Young’s case dismissed.  Here’s the TMZ report.
Recent News
  • David Markus was just named Best Lawyer’s “Lawyer of the Year” for 2017 and received the “Legal Luminary” award from the Dade County Bar Association.
  • The 2016 Super Lawyers again named David Markus as one of best 100 lawyers in Miami and the 2015 National Law Journal named him a “Trailblazer” for White Collar Criminal Defense.
  • Margot Moss just wrote an article on Restitution for the National Association of Criminal Defense Lawyers.

David Oscar Markus hosts the popular Southern District of Florida blog, which provides news and notes regarding federal practice in the Southern District of Florida.


It looks like a good conference, with lots of our judges speaking and participating. It's Friday May 12 and >>
Thu, Apr 20, 2017