Seamlesschex has their own Validation.
Stop payments shouldn't be happening at such a high rate.

Also if your referring to using Seamless' Auto Deposit feature.... they only work with certain banks, and most likely a small midsize bank isn't on their list. Unless you mean something different when you say "Proccessing Echeck through Seamless" - Because if he was just Printing Checks and doing a Mobile Deposit (Like I do) It wouldn't have to be a bank that works with Seamless.