J.B.
No, but we did a loan modification. My husband is self-employed so in addition to all of the stuff that they're asking you for, we had to supply 6 months' worth of bank statements and 3 years' worth of taxes including his detailed income and expense statements from his business. No joke over 2 years we submitted this package 6 times to 4 different organizations. Every time we faxed this stuff it was over 100 pages. It's a total nightmare.
Just get two big file folders and clip a list of everything that you need to the front of each so that you have a check list. Then as you locate the documents, make a copy of everything and put the original in one folder and the copy in the other. If you fax things, this will make sending them easier - your "copy" folder will take the 2-sided copies (bank statements, etc.) and have them one-sided so that when you send the fax, everything will be transmitted in order. Sounds stupid but that was one of the most maddening parts...making single-sided copies of all the 2-sided documents. Keep all of your originals in one folder, the copies in another and when you have to fax or mail everything, just send the contents of your "copy" folder and if they lose anything, you have your originals as back up.
Work on this for 15 minutes at a time until it's done. Set a timer for 15 minutes, work on some documentation, then take a break. In a little while, go back for another 15 minutes, continuing until you have everything.
Then, if they don't accept the short sale, there's really nothing you can do. Your credit is trashed anyway and if they want to foreclose rather than sell your property to a willing buyer, that's the bank's problem. Good luck!