They will just require proof of it for any kind of commerce.
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Realize this also means paying taxes. They can take your home for not paying property taxes.
Not right away. They'll start with a kind of freebie to get the ball rolling such as a tax credit or similar to get the sheep comfortable with the idea. Once a critical mass is reached it will slowly become mandatory for more activities - they know how to boil a frog.
Signpost for travel to The Homestead is just down the road from the Little Bighorn Battlefield.
Come and take it.