This guy's name is Dr. Luke? Like, he's a doctor? Luke is his last name?
This might be a tough business lesson for kesha, but bad relationship with company rep is not a basis to terminate a contract with company (it sounds like she doesn't like the K antmore).
Maybe her attorney can show Sony knew the guy was a cosby, and she can get a big negligence award for putting him in charge of her. But the contract is the contract