He's also sent a madman in a Daredevil costume to kill him, got his practice shut down, and hired a crazy super-commando who almost killed Foggy's girlfriend. Foggy also worked for one of his dummy corps once and caught on that it wasn't on the up-and-up, so he'd have seen some of Kingpin's corruption from the inside, especially if they made him defend any of the guy's men. I'm sure there're other things on down the line, but all of this was just in one book.
If you haven't read Born Again I cannot recommend it enough.