Michael Spinks years he remained close to his former promoter, Butch Lewis, training fighters and making rare public appearances at events promoted by Lewis. In 2011, however, after Lewis died from natural causes, it was reported that Spinks had sued Lewis's estate in a Delaware Chancery Court, alleging that the promoter had failed to properly manage more than $24 million Spinks had earned in the ring and had violated their agreements that Lewis would continue to manage Spinks's money and pay his living expenses for the rest of the boxer's life. The lawsuit alleged that he commingled his personal funds with Spinks's
Michael Spinks win the heavyweight title. "The Ring" Magazine in 2002 ranked Spinks as the third greatest light-heavyweight of all time, behind Ezzard Charles and Archie Moore, but ahead of Tommy Loughran, Bob Foster, Harold Johnson, Maxie Rosenbloom and Billy Conn. Furthermore, Spinks did what no other light-heavyweight champion was ever able to do: move up to win the world heavyweight championship, by decisioning IBF champion Larry Holmes in 1985. On "The Ring" Magazine's list of 100 greatest punchers of all time, Spinks was ranked 42nd. On "The Ring" Magazine's list of the 80 Best Fighters of the Last 80 Years, released