Great idea....actually the house went to one of the heirs and they remodeled it totally and the folder was never found.
I personally inspected his car in case he hid it in there. We have no clue what happened to it.
I've been appointed as executor of my Uncle's estate and he has some stuff hidden in the ceiling tiles of his mobile home. Frankly I have forgotten exactly where it is myself, I have no idea which room it is in, and I'm too embarrassed to ask again, cause he's really old and I don't want him to think that I think that he's about to croak any minute-- even though he just might.
I think my wife has a better idea than I do. I guess we'll figure it out when the time comes, eh?