 New York, New York--Newsfile Corp. - September 23, 2021 - Bernstein Liebhard, a nationally acclaimed investor rights law firm, reminds investors of the deadline to file a lead plaintiff motion in a securities class action lawsuit that has been filed on behalf of investors who purchased or acquired the securities of ATI Physical Therapy, Inc. ATI Physical Therapy or the Company NYSE: ATIP from April 1, 2021 through July 23, 2021 the Class Period... 