I've never heard of this. Are there any places that do this?
All the counties here in NC do that, as far as I’m aware. You get a discount, they get paid ahead of time. It locks in the property tax rate. Counties are the taxing authority on undeveloped land, agricultural land, residential property and commercial property here. Municipalities are too, though, so I’d suggest not being in an incorporated area or anywhere near where annexation might be a threat, just the county. And make sure it’s an honest, down to earth red one.
Nevada and Texas have or had a state form of allodial title, the former (if it’s still in effect) involved paying 5% of assessed value and thereafter taxes didn’t have to be paid on the property until the last person on title at time of payoff passed away. You could set that up to get near 100 years out of it.