Mayer Brown and Wilmer Cutler Pickering Hale and Dorr have taken roles advising Ernst & Young (E&Y) in settlement talks with regulators over the accounting firm’s failure to report fraudulent activity at one of its clients, reports The Am Law Daily.

The Securities and Exchange Commission (SEC) had accused E&Y of issuing unqualified audit opinions that said that Chicago-based company Bally Total Fitness’s 2001 and 2003 financial statements conformed with US accounting rules.