The ultimate point of that list (which is really very short) seems to be keep a file folder and at least two copies of everything, one set aside for the lawyers. I mean, if you look at the list, everything on that list is something that you should already have as a mark of good organization.
I suppose if you go step by step its not that hard. Better to have it all ready and leave them looking for stuff to ask for instead of trying to get it all really fast in a panic.