In this case, I don’t agree. The municipal charter here allows non-residents who own property on the island to vote. Why should it be different whether I own the property in my own name, or I own a corporation that in turn owns the property?

To the extent there’s a problem here, the problem is the municipal charter essentially allows “property to vote.” That seems to be the real problem.

Because owning a corporation becomes a way for you to vote twice, once on your own behalf, once on behalf of your corporation.

This seems like an obvious problem

Then it wouldn't be a big deal to change that charter, right? Right? Right? Of course, if the actual locals are bothered by it - not us on the internet with exactly zero dogs in that fight.