I have a man that lives in a small house of mine. He pays rent in cash (but doesn't pay all of it, if not at all). He doesn't have a lease and and has been living there over a year. I just want him out, so can i just have a cop kick him out or do I actually have to evict him. Also at what point can i just pack his stuff up and clear out the house or clear it out without giving anything back. I live in IA.