Who would keep all of their case files in boxes, under a house?
What kind of ex-Fed would even think this is a good idea? Besides the fact most of this information would digital, I highly doubt it's authorized to keep sensitive/classified federal case files at home. Then again, Gator wouldn't be able to randomly tie Broker to one criminal that has a bounty on his head.
Entertaining film, but a pretty lazy way to fill a plot hole.