Other mistake: If the cartel's money to be cleaned is from selling drugs then why is it all brand spanking new? In season one he gets it delivered in a van in boxes. When they open them the money is new bills, still in bank wrappers. Why would people buying drugs go to the trouble to going to the bank to get new bills?
Other mistake: When Marty deposits $906,352.17 into his account, it shows a previous balance of $15,736.42. After the deposit, it shows $932,088.59, but that is incorrect. It should show $922,088.59.