You could just continue until the lease expires in November and not renew it with the current tenant (since the month-to-month is an option at your discretion). Your best venue however is to contact a real estate attorney and get their advice. Unless a respondent on Trulia is also a licensed attorney, we are unable to render any type of legal advice.
Hope this answer helps,,
Tina Evans, Broker
CRYE-LEIKE REALTORS/Cookeville, TN