Kim and Kanye will have a prenuptial agreement before they marry.
From TMZ
Kim Kardashian and Kanye West have agreed ... they'll keep their assets separate by drawing up a prenup before they tie the knot ... TMZ has learned.
Multiple sources connected with the couple reveal ... both Kanye and Kim are devoted to the marriage and they're not signing a prenup because they're worried the relationship might fall apart. But they're both business people and know given their vast wealth it's just the smart move to make to have a prenup.