Font and AOD

Hi, it is my first time making a theme. So I have 2 questions.
I understand that everything regarding the theme needs to be original and no copyright problems or so. How about fonts? Can I use any fonts available on google that are okay for commercial use?
Second, in Theme Submission Starter Kit, there is no premade AOD? So I don’t need to make it? Is it okay if I add that too?
Thank you