You should get a lawyer. But, here it is: assuming he doesn't pay rent then he is a "licensee" whose license you may revoke at any time. However, you must give him ten days written notice to leave that is delivered the proper way by a process server. You then have grounds to evict. But, you should get a lawyer for that, too.
Answered on Oct 26th, 2011 at 7:46 PM