No, you're allowed more than one, but only one/province. I think making them available in too many places would make estates too powerful in comparison to cargo ships, as it's the current limitations that keeps the far less reliable sea trade option viable. If you had one estate in Alexandria and one in Memphis today, there's only one sea trade route that could compete with that, and that would be the Alexandreia-Salamis route, and that would require all 15 ships. As you can only have one person/route, and you have to reclaim a route each year, on top of interruptions because of pirates being harder to dispatch than brigands and enemy fleets also being more probable than enemy armies, there's really little incentive of going for the sea trade option. I only did so to leave place for you guys to have estates.

Quote Originally Posted by Ibn-Khaldun
Can't do that. Law E1.2 prevents it.
Respectfully, my dear comrade, I beg to differ. Law E1.2 requires us to pay our percentage within two seasons from its passing, but it says absolutely nothing about how it should be divided - or even that it should be divided at all. In other words, it is completely legal according to it to pay nothing this turn and pay 100% the next. I'm only asking to pay 50% -52 mnai this turn, and 50% +52 mnai the next.