No, it reached an impasse - their landlord refused to confirm if it was in their lease, so we assume there wasn't a clause. There is the allegation that my friend is a troublemaker and paranoid. Their landlord wants to visit his flat to see for himself but wants 24hours notice. My friend doesn't want him to as he feels intimidated and knows that any notice period will give the other tenants opportunity to avoid smoking and then it will look like a fuss about nothing. He has had post stolen and items stolen, cameras broken and the lock to his gate smashed, so they just go into his garden. None of which is provable though, so they claim he is just making it all up. It's difficult - I'd advised him to call the fire brigade when it's smoky and also to contact the police about the other things. I can't force him to do anything, but it would seem like the correct steps. I've spoken to his landlords about all of it and he is very dismissive. He claims his tenants have similar complaints.