ARLINGTON, Va. & CHICAGO–(BUSINESS WIRE)–Vivmark Residential (NYSE: VMRK) today announced that S&P Global Ratings raised the Company’s long-term issuer credit rating to ‘A’ with a stable outlook. Vivmark Residential is one of only four REITs with an ‘A’ rating from S&P Global Ratings. In its rating announcement S&P Global Ratings noted its anticipation that Vivmark Residential will benefit from materially larger scale and operating efficiencies while maintaining a conservative fin