If I need to hire a tradesman, can I use one from my personal supply without paying 2 influence?
yes if available
If this is true then a players meeples who haven't been introduced to the game yet (those not in the personal supply) are in some "twilight zone" space, where they can only be taken out by paying 2 influence: true?
yes they're begging on the streets for work...
Stack of meeples on personal supply (those that have been expelled) are free to hire as tradesmen and first to go when placing a citizen on a principal building?
Other meeples in "twilight zone" cost 2 influence to hire?