"Upstairs apartment cannot be shown under any circumstances. Buyer assumes responsibility for the month-to-month tenancy in the upstairs apartment. Occupant has never paid, and no security deposit is being held, but there is a lease in place. (Yes, it does not make sense, please don't bother asking.)," the listing states.
The posting, which asks $130,000 for the house, drew attention on Twitter, with some speculating on the nature of the mysterious tenant and branding the home a "nightmare house."
The home was previously sold for $52,000 in 1997.
A HotPad.com listing that sought to rent out the downstairs unit before the post expired Feb. 28 offers one extra detail about the unknown tenant: "Upstairs apartment is occupied by professional artist."