#2 is bad… Why would you want to pay $800/month for someone else to live there, and for a property that is that underwater and would take forever (if ever) to re-appreciate back to your purchase price? Lose/lose scenario.
#3 the worst decision. Because not only would you be paying $400/month for someone else to live there, you’re also going to spend $50k(which i think it would cost a lot more), for someone to live there.