hah. reminds me of my house at school. we lived near a busy hospital that had limited parking. so the previous tenants suggested that we offer any extra stalls up for rent @ $xx.xx / month, which was 1/4 of the hospital employees parking passes. so i put up the notes on a message board in the hospital only to continuously be offered the same amount of money for the entire year as that is the only "fair deal". after a couple weeks of the cheap offers, i went back to double check if i had a typo but the amount was clear, and i asked someone how much their pass was and that info was also accurate. so i just tore the note down and did not let anyone park. later we used btoh stalls up, but there was a 5 month period that could've profited towards a keg or somethin.
goodluck with your more serious, legal complications