michael s. yenni was born michael maunoir. he received a bachelor's degree from southeastern louisiana university. yenni served as the director of the department of citizens' affairs in jefferson parish from january 2005 to june 2006. on july 1, 2006 he became the 7th chief administrative officer for the city of kenner for then mayor ed muniz's entire term in office. yenni's grandfather joe yenni was the mayor of kenner from 1970–1980 and president of jefferson parish from 1980 until his death in march 1987. his uncle mike yenni was elected in september 1987 succeeding his late father as president of jefferson parish until his death in october 1995.