Bankruptcy Law Questions? Ask a Bankruptcy Lawyer.
The fact that you indicated on the Bankruptcy petition that you were going to affirm the mortgage is not sufficient to effectuate an affirmation, which requires a separate form that must be signed by the debtor, and submitted separately from the Bankruptcy petition.
Since the mortgage was discharged in the Bankruptcy, the bank cannot pursue a deficiency judgment for the balance of the mortgage once the house forecloses. Additionally, a foreclosure of this mortgage is not supposed to have any affect on your credit report, as the mortgage will continue to be labeled as "zero balance - discharged in Bankruptcy". The foreclosure is not supposed to show up on your credit report, because you are no longer responsible for the mortgage.