Michael Cohen, Donald Trump’s embattled personal attorney, said Monday morning in a letter filed in a Manhattan federal court that documents seized by FBI agents last week may include information from Morgan, Lewis & Bockius and Squire Patton Boggs.

McDermott Will & Emery partner Stephen Ryan, who is representing Cohen in an investigation being led by federal prosecutors in the Southern District of New York, asked a federal judge to allow him to first review seized documents for privileged material or appoint an independent third party as special master for the review.