Kashmir Hill:

In recent months, Liss-Riordan has filed lawsuits against Uber, Lyft, Homejoy, Postmates, and Try Caviar—five of the largest on-demand start-ups in the world. These suits all boil down to a rather simple allegation: these companies pay the people who supply the equipment and manpower that power their businesses like independent contractors, while burdening them with the work expectations of employees. Representatives of Uber, Lyft, Homejoy and Caviar declined to comment on pending litigation, and Postmates did not respond to request for comment.
 
 Harold Lichten, Liss-Riordan’s law firm partner, describes her as “a pit bull with a chihuahua in her mouth” when it comes to suing on-demand start-ups. “She will make life as difficult as possible for these companies,” he said. “Here’s Uber — this business model with $40 billion behind it, that is seen as the future — but if she’s correct about their needing to classify all of these drivers as employees, it destroys that model. And it means all these venture capital investors who have poured millions of dollars into the company have bought a pig in a poke.”