Another thought: check with a lawyer.
I had a live-in partner for only a few months. He paid nothing to me in rent nor did he financially support the household. (It's a long story....) When the relationship soured, I asked him to leave; unsurprisingly, he wasn't happy to do so. I did check with my attorney about getting this man out of my home. My lawyer told me that I may have to go through the legal system to have him formally evicted (which would take months...) if the man didn't leave voluntarily. This prospect scared the crap out of me and, truthfully, has made me leery of any future live-in situation, relationship or otherwise.
Sorry to be a wet blanket here. Hope my experience can be instructional.