Lets be armchair evil for a sec...

What is the smallest subplot you can split a parcel into?

And are we talking literally land, or would condo ownership suffice? (After all, you typically stack a few condos on top of one parcel of land). The smallest condo is probably dictated by some pesky human habitability rules, but what class of property has the fewest minimum-square-footage zoning rules? Retail probably has egress rules, but what about industrial spaces?

Could you create an industrial park to house a bunch of, to use a rough metaphor, independently-owned/independently-operated phone booths (or whatever other "qualifying use")?

Basically is there a category of land-use you could split ownership off at ridiculous scale, offer LLC-as-a-service to buy a bunch of them, and just for fun, tokenize the votes to provably aggregate the absentee ballots at scale via blockchain?

If it's one-entity-one-vote, what is the most cost-effective way to maximize the number of qualifying entities?

Bonus points for every order of magnitude of synthetic votes you can reasonably achieve over the fleshy variety.

In most areas, especially any that are at all developed, land parcels and minimum lot sizes are under the control of a county or city commission, council, board, etc. Subdividing a property is as expensive and time consuming as you might imagine dealing with the government, you'll probably need a lawyer to do it properly, have to appear before at at least one if not several public meetings or hearings, etc. And they will almost certainly deny any petition along the lines of the examples you offered.

Where I am, things like dividing a 5 acre rural property so that a mother-in-law can live in a cottage near her family are routinely denied.