Renting rooms in an illegal duplex?

[Marcus Isaac]

What would be some of the problems that may arise with trying to rent rooms in a property that has been illegally converted into a duplex? It was a 2-story sfh that now has a unit on the bottom and a unit on the top, but no permits were pulled, and it doesn't meet the local requirements to be legally converted into a duplex (needs to be 4,000 sqft and it's only 2200).