Would an idea like this but applied at increasingly higher rates as you own more homes work? For example, owning a single home, you pay a certain amount, if any. Want to buy a vacation house? Start paying n% LVT. A third vacation house? n*1.2% LVT etc. Are you a pension fund buying up 80,000 single family homes? Tax should be so high on owning this many homes you wouldn’t want to do it.