If I go on an ACTS Retreat do I have to do certain things after it’s over? Do I have to be on retreat team? Do I have to be involved in other ACTS centered activities?

The short answer is no, you don’t have to do anything you don’t want to do after the retreat.  Hopefully, during the retreat you will learn things about your faith, yourself and the way others practice their faith.  The goal isn’t more members for a group; it is a better and stronger relationship with the Lord.  If that relationship moves you to also become more active in your parish community or part of a future retreat team, that’s great!