He said he had an arrest for unlawful discharge of a firearm.  

Depends on what it was for, whether it was discharged or not, and how long ago it was.  

I accidentally discharged my nail gun into the counter  (after a very long day) and I had trouble finding the hole.  

Owning a home is exempt so you will have a place to live if you are discharged. 

I am not a bankruptcy attorney, so take this at face value, but my understanding is that the discharge refers to discharge of debts. 

If the sale price is at market value, reasonable, the Trustee will almsot always allow the sale before the discharge in order to get the money to pay other debts.

Assuming no other options existed, once BK is discharged, begin drawing from 401-K, or from regular IRA created by a roll-over from 401-K, as needed to supplement SS income (assuming she has already quit her job).As alluded above, my bullet item 4 above may annoy some of my fellow investors and agents, but in the absence of more income, or willingness and ability from the kids involved, or other viable options, it is what it is.Best of luck to you and your Mom.

He filed for bankruptcy in February 2012 and the debt for the property has been discharged in the bankruptcy filing.

My bankrupty will be discharged 2 years this July.

All bankruptcies must be discharged.