A rare event. An attorney seeks to extort a payout and is charged for doing so.
This is the unseen issue. I believe it is widespread. It's just that Michael Avenatti asked for so much it made better sense for the corporate victim not to sweep it under the rug.
https://www.politico.com/story/2019/03/25/ny-prosecutors-announce-charges-against-avenatti-in-alleged-extortion-scheme-1235231