Answer:
Although a court case over the validity of a facsimile signature is likely to be decided in the bank's favor, it's the bank's prerogative to refuse to honor such a signature without something in the deposit contract (often added in a rider document) that puts the burden on the customer for the use of the stamp. Such a document can also include caveats to the customer concerning security for the stamp and controls over its use. I suggest requiring that a rider to your deposit contract be composed by counsel and signed by your customer.
First published on BankersOnline.com 10/16/06