Need SubTo Exit or New Idea for resolution

I did a SubjectTo with some “friends” who’d just filed bankruptcy, with plans of getting the loan in my name within the year.
It’s a year later and though I have the income, and score …a few late payments on a timeshare (which registers as a mortgage) is not fairing well.

The house has been in the market a while, with no success.
They now have explored short sale and died in lieu, however, the first option would be for me to get the loan in my name as was originally planned.
It’s a nice home in nice area…originally appraised at 390k ….mortage is 340 ….now willing to do short sale of 300-320k

Any suggestions or ideas or how to resolve this?

Find an end buyer to purchase…even if their offer is less than $300k.