Ok, I get this question. When you first file for BK (chapter 7), you check a box stating if you want to include the home in your bankruptcy. No matter what you check, the bank will still send a reaffirmation agreement to you prior to discharge. At first, I checked that no, I didn't want to include the home in the BK. This was on the advice of my atty, because sometimes banks will send better terms in a reaffirmation agreement to keep the debtor in the house. Anyhow, when I got the reaffirmation agreement the terms were still crap, so I didn't sign it. Again, you get the agreement in the mail prior to your discharge and if you still want to keep your house out of the BK, you have to sign and return it before discharge.
Once your BK is discharged, if you did not sign a reaffirmation agreement, you are no longer legally responsible for the debt and the mortgage was discharged as well, regardless of what box you checked when you first filed. However, you still do own the home and you name cannot be removed from the paperwork until the bank forecloses to take ownership. If you are making payments still, they won't do this, as it costs them money. So, if they are accepting your payments and not threatening foreclosure...and you never signed a reaffirmation agreement, you are sitting pretty. You are still the home owner and responsible for taxes, HOA fees, etc.. but the bank cannot come after you if you stop making mortgage payments. They also should not report it to the credit bureaus if you stop paying now, or report it as a foreclosure, because the debt was discharged with your bankruptcy.