Welcome to Who Got the Work?,” a weekly column that highlights the law firms and lawyers who are being brought in to handle key California cases and close major deals for their clients.

In this week’s column, a mother whose daughter died by suicide accuses the Facebook and Snapchat platforms of encouraging social media use that’s detrimental to minors’ mental health; Microsoft acquires Activision Blizzard amid litigation over accusing the gaming company of fostering a toxic culture; and Volvo faces a trade secrets dispute with a startup launched by former employees.