Southfield, MI, June 14, 2021 (GLOBE NEWSWIRE) -- Sun Communities, Inc. (NYSE: SUI) (“the Company”), a real estate investment trust (“REIT”) that owns and operates or has an interest in manufactured housing (“MH”) communities, recreational vehicle (“RV”) resorts and marinas, today announced that it has received investment grade ratings from S&P Global Ratings and Moody’s Investor Service.