Are you trolling? It's not LAToken, it's you who came up with this ridiculous idea!

The thing is, clients will pay in your scheme. They'll pay for risks taken by trustees who work in not-quite-legal sphere, for LAToken performing middleman services, for compensations to the victims of this reckless playing with the law. Don't you think it isn't the most rational plan to implement?
LAToken actually wants to comply with the national legislatures in order to reduce risks and costs. This way it will be no risk of losing the reputation for trustees and no high costs. The latter is the primary purpose of LAToken after all.

No need to be rude, it's just an idea. And quite an efficient one.

OK, I see it. Cost reduction by complying with national laws. But what if the national law will be: "Everybody pays 50% from crypto transactions"? Will LAToken follow it too?

Let's not beat about the bush. We talked about it yesterday.
"What if..." - it's not the option. Why in the world would they introduce such a law? To make the cryptocurrency market dead in that specific economy? Or to make the number of cybercrimes rise with a spring?

What happens if the price of the property goes down below 80% of the value?

Seller can allow it to default and either he or someone else buy's it in auction, what happens to the differential? it will be a loss to the investors.

Can I buy LAT token by using USD or any other currency instead of ETH?

No, you can contribute with ETH only to buy LAT.