Stan is licensed in Texas and Illinois and has litigated cases in more than 20 states, including as trial counsel in Texas, Louisiana, and Arizona. He was one of the trial counsel for defendants in Raul Zendejas v. Shell Oil Co., Maricopa County Superior Court, CV-2007-005399. At this trial, Stan and co-counsel successfully defended a gasoline manufacturer in a lawsuit claiming plaintiff's exposure to benzene in gasoline caused his leukemia.

He was trial counsel in Burst v. Shell Oil Company, a 2015 decision excluding plaintiff's exposure assessment and general causation experts and granting summary judgment for defendants in a gasoline-acute myelogenous leukemia lawsuit in the United States District Court of Louisiana, Eastern Division (New Orleans). The Fifth Circuit Court of Appeals affirmed Burst on May 23, 2016.

Stan is global director of pro bono and community service and leads the firm's Pro Bono Committee. He is also a member of the Houston Advisory Committee for KIND (Kids in Need of Defense), a non-profit dedicated to providing legal counsel to minors fleeing violence and oppression in Central America.