Anyway, I decided to join House Redoran with one of my characters because I've never done so and because I am using a couple of LGNPC mods that make the Vivec Redoran Canton and Indarys Manor more interesting.
In order to ascend to the top dog position in House Redoran you must duel Bolvyn Venim to the death. Becoming Redoran Hortator as part of the Main Quest requires a similar fatal confrontation with Venim.
Is there any kind of conflict here, or an order in which these should be tackled? I'm assuming that if you've killed Venim in one duel it will automatically count for the other as well, but if anyone has more information, I'd appreciate a heads up.
Cheers!