single-episode spoiler alert for anyone who hasn't watched
i'm only halfway through S1, but the episode where they steal an old lady with alzheimer's from a nursing home to fool social security workers who were already suspicious of the whole situation comes to mind.
no ID asked for, no investigative work of any sort despite bringing in a federal agent on purpose to investigate. the lady was even reported missing from the nursing home and was on the TV news broadcast when she was returned.
so yea, the social security fraud is realistic, but the whole episode that revolved around stealing an old lady for the scam was not. but it was still hilarious.