[mikem170]

Georgia made residency requirements for voting that allow the homeless to vote. That's their prerogative. Same rules allow people who live year round in expensive recreational vehicles to vote, also.

Different organizations define residency differently. There is no single accepted way to prove residency. Sometimes a drivers license does the trick. Usually to get a a drivers license you need a utility bill or a lease. To get in-state tuition you need to prove a year of residency. Proof of residency for state taxes is more complicated, and varies by state. Residency is different than domicile, etc. As someone who has moved around a lot I've bumped into quite a bit of this.

There's nothing in the constitution saying that a person needs to own or rent a house to vote.