I love her totem. Awesome (0) action, and you really want a model with Magical Extension when playing Justice. As for minions, I rarely play Death Marshals (cover is their bane) and tend to load up on Witchlings instead. The Judge and the Executioner fill a similar role, so I'd advise replacing one of them with a Guardian, Nino or Santiago or something like that instead.
Also, Justice likes her soulstones, and a high(ish) :masks in hand.