Market Watch says Sun Communities, Inc., (NYSE:SUI) has declared a quarterly dividend of $0.63 per share for the second quarter 2011, payable July 22, 2011 to shareholders as of July 12, 2011.  The company has 21.5 million outstanding shares.  Sun Communities, a real estate investment trust (REIT) owns and operates 155 manufactured housing and recreational vehicle communities with 53,500 sites.