Can i sue the guy i was working under the table for if i broke my leg working?

You may have a workers comp claim, but if you were just an independent contractor for a project on a home, then you may not. It depends on its unique facts. Secondly, you also may have a claim against the homeowner for negligence, if the ladder was defective in someway, or there was something about your accident that was caused by the homeowners carelessness. But even then, his homeowners insurance policy may have exclusions for accidents that happen to people in your situation. You should discuss this case thoroughly with an attorney in your jurisdiction for specific advice.  

I highly recommend consultion a local Ohio injury attorney. This question does not have a black and white answer and a local attorney specializing in injury cases would be in the best position to give you the proper guidance and advice! You absolutley have a workers compensation claim, but you'll need to speak with an attorney who knows Ohio laws and legal standards to know whether you can file a third-party negligence claim as well as a workers compensation claim.