You inherit more from your parents than their genes. You usually pickup some of their instincts, their idioms and their interests. And usually — at the dinner table, during the daily commute, and especially at their workplace — you learn about their job. The tricks of the trade. The dos and don’ts. Their experience is passed down to you. Those that follow in their parent’s footsteps will tell you, that experience is critical.

Mark J. Sullivan, nicknamed “The Perry Mason of Palm Springs,” by Deanne Stillman, raised his son around his criminal defense practice. As a teenager, Shaun investigated crime scenes, interviewed witnesses and game planned trial strategies with his father – a certified criminal law specialist.

In 2011, Mark J. Sullivan looked on as Shaun A. Sullivan took his attorney’s oath in the chambers of the Honorable Kyle S. Brodie. Afterward all three returned to Judge Brodie’s courtroom and immediately started jury selection for a 1st degree murder trial. The trial was their first as “co-counsels,” but just the first of many as a team.  Seven months later Mark J. Sullivan passed away, and Shaun was thrust into the role of lead trial counsel.

In February of 2013, Shaun defended an Army Sergeant accused of attempted murder. The trial lasted three weeks, and the defendant faced the possibility of life in prison if convicted. Instead, after an hour of deliberation, the jury returned “not guilty” verdicts on all charges, and the defendant walked free. 


Shaun constantly hones his trial techniques, and has gone to trial on a variety of charges, including aggravated mayhem (with gang enhancement), assault with a deadly weapon, domestic violence, reckless evading arrest, assault on a police officer, driving under the influence (DUI), and attempted murder. 

Before law school, Shaun was a varsity oarsmen for the Colgate University crew team. In law school at University of San Diego, Shaun was on the San Diego Law Review. 

Shaun A. Sullivan practices in California Superior Courts and federally in U.S. District Courts. He lives and works in San Diego. His office is located in Banker’s Hill, adjacent to Balboa Park.