So I, admittedly, was time traveling. Unfortunately I forgot to load a new save file.. and this happened:
Can anyone tell me the fastest way to move someone out?
Its simple. Just never turn down a request for a certain villager you want gone and the villager will have a higher chance of moving out. There's no sure fire way, other than this.
Just know it's a lot harder to get the most recent villager to move. If you get another villager to move in then do what everyone else said they should be gone in no time