Replying to Taxes

so tax season came and went and I was unable to file because I didn't get w-2's back from a place i used to work at. I quit cuz the dude was a dumb asshole, but anyhow, i was wondering about his legal obligation to send me a w-2. I'm going to contact him and i want to know wether i can threaten him with legal action to help put him in his place. any finance majors know about this? i feel like it would make sense that he is legally obligated to send them to me, but i just want to be sure.