Basement Rental into a Duplex

[Alex Waite]

Duplexes are rare in the location I am in so I have been looking for a split level homes. My strategy was to block the up and down stairs with a door that can be locked on both sides. The downstairs would need some work to include a kitchenette. But my main question is can I convert a single family house into a make shift duplex and rent the top and bottom?