Exhibit 2.1 AGREEMENT AND PLAN OF MERGER THIS AGREEMENT AND PLAN OF MERGER (the "AGREEMENT"), dated as of February 28, 2005, by and among PROASSURANCE CORPORATION, a Delaware corporation ("PRA"), NCP MERGER CORPORATION, a Delaware corporation and a...Merger Agreement • March 3rd, 2005 • Proassurance Corp • Fire, marine & casualty insurance • Delaware
