The trustee of a company that ran for-profit schools and filed for bankruptcy in 2014 has sued Williams & Connolly, alleging that the firm’s billing practices “exceeded the bounds of unreasonableness.”

Duane Morris was also named as a defendant in the suit filed Wednesday in civil district court in Dallas County by ATI Enterprises Inc. The nine-page complaint alleges that the legal services provided to the company by Duane Morris were “duplicative and unreasonable.”