Foreclosure after Bankruptcy

Hi all, 

I have numerous leads where the homeowners declared chapter 7 bankruptcy 5-10 years ago. Since then, they have severed all ties with the homes. And only recently has the foreclosure proceedings begun. 

The lender is not looking to collect any debt from them as that has all been relieved. The lender is simply looking to repossess the property through the foreclosure process.

Are the homeowners at all affected if the home forecloses at this point?  Will their credit be affected?  Could they short sale their home at this time?