Divorce with bad credit.

Thanks so much for the free advice. Thanks for offering us some hope. I am planning on marrying someone I've been dating for some time now. He's a really great guy, however he went through a divorce and the whole nine yards, his credit is terrible. Mine is kinda decent. Will his credit be tagged onto mine, or affect mine in anyway once we get married?
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if you cosign for anything or get joint awnership on anything that already has an installment loan.