Not sure DC. Tom was in on the plot to kill Sol and McK. He wasin on the plot to kill Tessio. He was in on the plot to kill the heads of the five families (or is it four? Barzini,Tattaglia, Stracchi and Cuneo).He was in on the plot to kill Carlo. Tom was also in on the plot to kill Roth and he was the one who talked Frankie into suicide. That's hardly legitimate legal work.

Then again Michael was completely delusional about becoming legitimate. Once he shot Sol and McK he could never become legitimate....even in III when he tried to buy his way into legitimacy.