Michael Youngblood has joined GMAC-RFC Securities as director of research. He will head research initiatives related to agency and non-agency residential mortgage-backed securities as well as analyze trends in metropolitan housing markets. Youngblood reports to managing director Peter McCarthy. Prior to his sting at GMAC-RFC, Youngblood developed mortgage research units at Banc of America Securities, Chase Securities, and Smith Barney. He was also director of residential research product manager at Salomon Brothers Inc., where he worked with MBS stalwart Lewis Renieri.