Betcha that lawyer gets a call from the IRS - audit time for you!
Nah, too overt and too easily connected back to the administration. But it'll be something very direct and unmistakable. His office or house will burn. Car may get stolen or get totaled in a hit-and-run. Maybe a break-in and trash the house/office. A few things to make his life hell until he "gets the message" and decides to pursue other cases.
Nah, That lawyer has already been discredited from almost every courtroom in the U.S and her territories.