Eastern Insurance Holdings Inc (NASDAQ:EIHI) Investor Files Lawsuit to Halt Takeover by ProAssurance Corporation

San Diego, CA -- (SBWIRE) -- 11/05/2013 -- An investor, who currently hold shares of Eastern Insurance Holdings Inc (NASDAQ:EIHI) filed a lawsuit in effort to halt the proposed takeover of Eastern Insurance Holdings Inc by ProAssurance Corporation for $24.50 per share.