Facebook, the social media giant constantly in trouble with governments worldwide over data privacy concerns, named a U.S. Department of State adviser as general counsel earlier this month—one of the major in-house counsel moves highlighting a busy April. Other prominent additions include Walmart hiring a senior vice president of litigation as the company battles lawsuits related to the opioid epidemic while some general counsel resigned and others added more duties to their position.

For resignations, April started with the University of Southern California announcing the June departure of its general counsel amid the legal issues around the “Varsity Blues” admissions scandal and the sexual abuse accusations from 600 students against a former campus gynecologist. Also in the Los Angeles area, Public Storage and MedMen, the popular cannabis products retailer, both lost their top lawyers on the same day. Public Storage’s chief legal officer took a position “closer to family” while MedMen’s general counsel resigned with the chief operating officer three months after the former chief financial officer sued the company over alleged wrongful termination.