Harvey should have hired Mike as an consultant from the get-go
Then they wouldn't have had half the problems they've had. Bring him in as an incredibly well-read consultant with an eidetic memory and expansive knowledge of the law. He could have pretty much done everything but argue cases in court, including working closely with Rachel and falling in love with her, without ever lying to anyone about his level of formal education. Louis would have looked down upon him up Mike demonstrated his expertise and saved Louis a few times.
(this signature was absent on picture day)