Kris Jenner, be warned ... French Montana will have a foothold on the Kardashian fortune if he marries your daughter.
French was at LAX Tuesday when he was asked straight up ... will he sign a prenup to seal the deal with Khloe? He was emphatic ... NO.
French might have issues ... Khloe and Lamar Odom signed a prenup before they got hitched, so the likelihood is ... this would be a deal breaker.
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