A premarital agreement can limit the amount of spousal support that one spouse will have to pay the other upon divorce.

婚前协议，可以限制一个配偶离婚后支付的其他配偶赡养费的金额。

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Also, the fact that they make a lot of money, especially Klum, probably forecloses the need for any spousal support, although Seal could still get a substantial amount of money through child support.

FORBES: Heidi Klum And Seal Divorce: How Much Is At Stake?