i think if a group of people converged on a small shire, bought a substantial chunk of the land, and got busy talking to the people about establishing an independent jurisdiction it could happen
i'm pretty sure that land titles have some part in the play of claiming jurisdiction on that level, there is a grift in it as well but if you were to acquire legitimate democratic control of a local council i think that means you can sign off the membership of the state government
i mean, it's not gonna be a simple process but this is NOT what the free state project was doing, they were targeting much too large a federation of councils