Becoming a PR to Do a short sale

[Michael A. Soper JR]

I am Curious to see if anyone goes after properties in which both owners have passed away, the property is upside down with a large mortgage and the family (Heirs) wants absolutely nothing to do with the property and do not open estates for there passed loved ones. In theory does anyone here continue to actively go after these leads do a judicial probate to become PR of Estates then do a shortsale on the property. Trying to see A is this Legal and B is this possible.