How to deal with Vlad?

introduce him in, try make him a friend from the outset before he goes home. Then get high mixology levels and mix him a drink that takes away his vampire abilities. after that i wait for one of those days where the weather is atrocious, something like thunderstorms and invite him over, once confirmation is through, i pause the game, lock the front gate and leave him outside to be zapped a few times so he dies.

After this i buy his mansion and use it to build a legacy from. Nothing like having a bit of ambition from time to time. xD