As live-streamed gaming continues to generate ever-larger revenues, Chicago lawyer Bill Quinlan is expanding his small firm to Silicon Valley, betting on future tech clients and on a burgeoning practice representing online video gamers.

Quinlan, whose family has political ties in Illinois, is representing gamer James “Phantoml0rd” Varga, who is suing Twitch in San Francisco County Superior Court after the Amazon-owned streaming platform terminated his account and content partner agreement in 2016.