Quote Originally Posted by QuintusSertorius View Post
The game can't display negative properties for those building capabilities; whenever it says "+-" it actually means "-".

There are no negative effects of having "foreign" buildings in a settlement, that's an RTW mechanic that wasn't adopted in M2TW. If they're providing a benefit, leave them be. The exception is other faction's colony buildings, which not only give you no units, but may prevent you building colonies of your own.
Quintus,
Thank you. That clears it up.
- CJ

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