This is interesting to me! I was doing some research on micronations recently (wiki has a List), and read up on the constitution of Liberland. It has...nice approaches, I guess.
In the constitution the part with the land-owning looks like :

§IV.18. A Land Bill shall propose to introduce, or to alter, the Fee on land of the Free Republic of Liberland.

But then again, this follows:

§IV.18(2) All Land Bills shall be subject to the power of general veto by the Citizens as provided in §IV25.
§IV.18(3) The Fee on land may be abolished by an ordinary Bill.

So most laws could be vetoed? The concepts behind micronations can be great, but as usual the surrounding countries will ultimately not let it pass.
Anyway, cool post!