Thanks for the replies. I am ATP rated, so I meet the minimums. I'm excited about starting this new job but stressed about getting enough studying in before ground school starts.

Are there ever any empty legs? Is it ever possible to get simulated instrument time while flying here? I guess the captain might think it's odd of me to want to build simulated instrument time, but I do want to try and get 50 to 75 instrument hours per year and if I'm not getting it in actual, then it'd be nice to get it simulated some how.

Does the captain always fly the plane?

I know charter pilots are required to do checkrides every 6 months. So is that for both the captain and the FO ?