No, a new spouse is not liable for the debts of your former spouse or debts of yours predating your marriage to the new spouse. If the home is owned solely by her and was provably acquired by her prior to you and she marrying, your or your ex-spouse's creditors will have no recourse against (that is, they cannot "go after") her home. Anything you jointly own with your new spouse is, however, something your credirtors could go after, at least to the extent or amount of your interest in or share of the jointy owned property. Therefore, you new spouse should keep her money and property separate from you while you have outstanding debts and should not put your name on any of her assets.