Assignment of Mortgage

I am looking to purchase a foreclosed property in the northern end of Palm Beach County, FL. The property has been foreclosed on and is now bank owned. The bank that now owns the property has very specific instructions as to the procedures of accessing information of their bank owned inventory. Specifically, they are asking for the assignment of mortage. If they are the mortgage holder, why do they need this? Also, where can this document be found?

Note: I have checked with the county courthouse, but got nowhere. The only thing they suggested was to submit a copy of the Deed.

Your post makes no sense. The bank owns it. What information are you looking for? Why would they require some sort of document?

Is it possible that the bank foreclosed a second position and is making payments on a first mortgage held by another lender? This might explain the request for an assignment of mortgage, just a guess.