I can't see how that is okay. Seems like bad advise to me. There is no such thing as "readdressed". An appraisal belongs to the buyer. If someone else wants that appraisal they can get it assigned to them by that bank/buyer but you just don't put someone else's name on a current valuation and hand it over to another.
_________________________
Just working here until I get my letter from Hogwarts.