If you are seeking 'fast money,' then short sales are not for you. Do not rely on bankers with desk jobs for you to earn a profit.
Looking back on 400+ transactions over the years, the quickest turn around is in 2 areas:
1. find a vacant home for sale by owner, contract to take control on a long term lease purchase with no money down or have the seller pay you a fee for taking over their bad position, then sell on a shorter term lease purchase to one who has cash flow but is credit impaired. Now don't say this can't be done; I've done this numerous times over the years and still do! If you look at some of my other postings, you will find the details and reasoning why this works.
2. find a cheap mobile home for sale by owner; put a small deposit down to hold for 30 days; advertise 'owner financing, no credit check' to sell at double your purchase price with down payment and monthly financing terms; find an investor to buy the note secured by title at 15-18% yield. Do the double closing and walk away with you profit. Again, I've done hundreds of these and details on other postings.
Quick money is still available in this market, even if you have no money and no credit to get started.
Hope this helps.
Rob