Hi Acrylon

Normally I would agree with Andrew that this kind of question is beyond the scope of this forum. But in this case, the answer is easy - it's no.

You can't totally reverse or do anything else with a payment once the check has been cleared and the check reconciliation posted. For those checks that have not been posted, you can simply reverse the checks, and then credit the original invoice(s), and you are back at square one.

Steve