"Approved Short Sales" versus wishful thinking

[Chris Haas]

Found this house and liked it quite a bit as a long term rental.
I then found it on redfin instead of trulia and it has a nice big banner "short sale"

http://www.redfin.com/PA/Shillington/101-N-Brobst-St-19607/home/38724275

My question, Do most listing agents do the homework of getting the short sale approved, meaning the bank agrees the hardship etc, or do they just list and wait for offers. Seems to me that would be a waste of the agents time as well.

Thanks for your time