Yes, you are paid when another nation hires away your advisors.
Not sure if it's still there, I thought the limit was 5 though.
What is your fleet doing? Sometimes if you keep it in port the AI doesn't seem to worry about it and sends out small fleets to blockade you, which is rather silly of it.
Thanks for the answers.
I was Castille, at war with Morocco, and the fleet was just floating, being a good bridge. And the Ottomans kept sending little fleets of 4 galleys into it.