As part of the rules for joining Great House Telvanni they say that killing is okay if you win. However, just like all other factions you get booted for attacking another House Telvanni member. Did anyone ever make a mod to allow you to stay in the House if you kill a fellow member?

Not that I remember. However, such a mod isn't needed: you can "make amends" infinitely in House Telvanni.

Yeah, just talk to a high ranking Telvanni and they'll let you back in. No fuss.

Aha! I didn't know that. Do you get reinstated at your old House rank?

Yes.

so technically it is that way, Correct me if I am wrong but when you make a faction there is no check box that says "Will not get booted if you kill a member" right? That is probably why they just amde ti so you cna make Amends indfinetly.

Okay, that's just really cool. I always reloaded if I whacked an NPC and got booted. It's a little weird if you are the Archmagister but at least it works!