Will it be limited or controlled how much land a person or org can claim?

There is no limit to how much land an individual player or organization can claim. However, there are enormous quantities of land available and players wanting to maximize the likelihood of earning a return on their investment will need to be selective. Further, the difficulty and expense of procuring, exploiting, and protecting that land increases with the area, meaning that most organizations will reach a natural limit as to how much property they can effectively control based upon their size.