In my games I often try Land Office. I have noticed that when manned with colonist I can still buy a plantation even if I have 0 Doubloons, so basically buying a plantation for 0 Doubloons, so getting it for free.
Is it a bug or is it intentional?
I could buy a plantation with 0 Doubloons and a manned quarry, but then again I could buy a plantation with no quarry and 0 Doubloons in hand.
In the rules it says Land Office allows you to buy a plantation when it is your turn to trade when Trader is selected for 1 Doubloon, but many times I could buy even when I had 0 Doubloons in hand. So it was free.
This made Forest House together with Land Office almost as strong as Forest House with Hacienda which is prohibited.