Musk-Wachtell Fight Over Twitter Legal Bills Sent to Arbitration

Elon Musk’s fight with Wachtell Lipton Rosen & Katz over $90 million in legal fees billed to X Corp. is headed to arbitration.

A San Francisco judge on Tuesday granted Wachtell’s request to arbitrate the dispute, over a “success fee” for the law firm’s work on Twitter Inc.'s successful bid to force Musk’s purchase of the company. The law firm and Twitter—which Musk later rebranded X Corp.—previously agreed to arbitrate such disputes, San Francisco Superior Court Judge Richard Ulmer Jr. said.

“The parties clearly and unmistakably” delegated the issue to arbitration, Ulmer wrote in a Thursday decision. The ruling came ...