http://www.ibat.org/legal-ease/2009/13/cashiers-check-stop-payment
Question
Can our customer put a stop payment on a cashier’s check? They think they might have been scammed and we would really like to accommodate them.
Answer
The simple answer is that a stop payment is NOT permitted on a cashier’s check, teller’s check, or certified check regardless of the reasoning behind it! Section 3.411 of the UCC imposes damages against a bank that wrongfully refuses to honor a cashier\'s, teller\'s or certified check or stops pay on one of those. You CAN re-issue these items after 90 days if a party gives you a declaration of loss under section 3.312, asserting that the item is lost, destroyed or stolen.