No, you can't demand that the owner close their fanlisting. You can ask, but in my opinion, that would be rude. The previous owners still have the right to keep their fanlistings open if they want, even after those fanlistings have been removed from the network. TAFL also can't make the owner remove the fanlisting or the TAFL link from their sites. You can always ask, politely, if you can use their members list, but they don't have to give their members lists to you, and I would only ask that if it's clear the sites have been abandoned (for example, they haven't been updated for half a year).