Do you also have offices in other states? Perhaps you can use the files at some of your branches (same state and other state) to help you compile your new file. Some of the items in your Main Office file must also be in at least one office of each state, other than your home office state.
Is it possible that some of the work is on your computer system somewhere. If you have a network, your IT people should be able to help you get access to his files and your back ups, from a time before he left, may help.
(Did anyone pack up his office, maybe there are some boxes in the basement where this may have been sent.)
Your PE can be picked up from your regulator's web site.
Lastly, click on the Read a Reg at the top of this page, select BB, which is Community Reinvestment Act, and look at 228.43 for items required.
Good luck.
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NOLA is my Beach!