@Phat_Hippity_Beats
Or, by reading the rules more closely, Killer/Lawyer/Doppel only voting every third round. Otherwise they get dropped. And in the cases where no one is voting, it is ironically better for the lawyer / Doppel to vote for themselves as the GM will only pick a random non-killer with no votes.
Being that they have no control over the voting habits of everyone, it'd be tricky to pull off a victory by default. But at this rate, plausible.
Do you still write a death post due to arbitrary inactivity?