Q: I have always included a clause in my leases that says if tenants use drugs on the property, they’re out. I recently smelled marijuana coming from the apartment of a tenant who moved in a few months ago. When I confronted this tenant, he claimed he uses marijuana for medical reasons, and said that because even the police won’t arrest him for his use, I have to allow him to use it and continue to live here. Is he right? –Dale S.