>>2683959The first question I would ask is "why offgrid?". A lot of people seem to think that this is some type of "shortcut" to an easier life but I've been looking at it for quite some time and I'm pretty convinced that it's not. While it can knock down some of your utility bills, you're still going to need money for property tax, insurance, and a bunch of other things. Additionally, moving away from job centers and infrastructure like the power grid, cell service, etc. is costly in and of itself, with gas and car maintenance going up because of the driving you will be doing and any jobs that you do will be very low paid.
Another issue I've seen is that people focus too much on buying land to build a house as the very first thing as you've done. Instead, picking locations and housing should actually be the very last thing and there are plenty of places that housing is fairly reasonable if you have the rest of things settled.
Personally, what you actually need to focus on is the financial picture first. Get money saved up and invest it so it'll generate income for you. Then when you have enough, pick an area that'll "match" that income and do the move then.
As for legality, if you buy a place normally why would anyone bother you? You can mount some solar panels up, lots of people do to help with electricity costs. Water might be an issue since without a muni water source, you're probably going to then hire out weekly or monthly water truck deliveries, but again, that's just more money you need to plan for. And even with a well, you'll absolutely need to pay for constant safety testing, water-borne illness are no joke. Sewage same thing, a sceptic tank plus regular servicing just boils down to more financial cost. But, as I said before, I'm unconvinced that these solutions will save you any money compared to regular utilities.