 NEW YORK, Sept. 13, 2021 PRNewswire -- WHY: Rosen Law Firm, a global investor rights law firm, reminds purchasers of the securities of AdaptHealth Corp. fka DFB Healthcare Acquisitions Corp. NASDAQ: AHCO, AHCOW between November 11, 2019 and July 16, 2021, inclusive the Class Period of the important September 27, 2021 lead plaintiff deadline. 