Does the owner of the real estate office sin, and what is his sin? He is merely an intermediary between the lessor and the lessee.

The questioner : He says: Does the owner of the real estate office sin, and what is his sin? He is merely an intermediary between the lessor and the lessee. People come to him and he rents them these rest houses and enclosures. He may know that they watch satellite channels there and gather there for what Allah has forbidden, or he may not know that. Does the sin attach to him?
AThe Shaykh : Yes, the broker is like the owner of the property. If he knows that these people rented it for disobedience, it is forbidden for him, and what he took for the brokerage is forbidden for him. And if he does not know, he owes nothing. Yes.