A former corporate client that Kasowitz Benson Torres earlier sued for unpaid legal fees is fighting back with a malpractice lawsuit alleging billing fraud, claiming it didn’t receive legal services “commensurate with a law firm that represents the president of the United States.”

Instead, the former client, insurance servicing company Patriot National Inc., said it was subjected to “fraudulent billings, malpractice and other egregious misconduct that has caused millions of dollars in damages.”