Has anyone dealt with a homeschool co op graduation?

Ok so a little background: My stepdaughter is in a homeschool co op that her mother put her in against our wishes. She just moved in with us a few months ago because her mother is mentally unstable. It's too late to put her in public school because she only has 4 months left. So normally her father deals with the co op because I'm a full time student and I work. Today I received an email saying that the mothers are getting together to plan the graduation. What should I expect? What's some good advice about how to plan? Maybe some ideas? Are these women going to eat me alive? I feel like I should mention that we are younger than all the other parents. via /r/Parenting http://bit.ly/2BbTfog