Immigration reform remains up in the air. Technology is redefining the workplace. And as emerging companies chase talent, the prospect of employing skilled workers all over the globe can be more appealing than battling to bring them into the United States.

But Bay Area attorneys who counsel startups warn that tapping into a global workforce without careful plotting can lead to an array of legal headaches, from complicated tax implications to possible lawsuits in foreign jurisdictions. Increasingly, those lawyers find themselves trying to make sense of a complex web of domestic and international labor rules for clients eager to grow quickly and bring products to market.