And you have no idea where they came from now do you ?
Yes...Yes I do know where they came from. Trump/Cohen set up a dummy "revocable trust" in order to funnel the money through in order to give the impression that it came from somewhere other than the candidate/office holder himself for the purposes now known. ( It's seen here...)
Later Trump felt comfortable enough to use his personal checks as payment. You know the personal funds the he claimed to have divested himself of because of the office he held. (see below and take note of the signature and absence of the "revocable trust" )