Hi Jessica,
Welcome to the Disney Parks Moms Panel! I love that you are taking such a large crew - let the fun begin!
Since it sounds as if you will have a multi-generational group, I suggest that you create smaller riding groups. When you board an attraction, each riding group will stay together. This will make it easier to keep up with everyone. I also suggest that you designate a few family members to be the group leaders. These folks will also create My Disney Experience Accounts and make
Fast Pass+ selections for everyone in their group. Make sure group leaders share plans with each other in My Disney Experience.
Although you all could try making all of the same Fast Pass+ selections, if you have children with you, some of them may not meet the height requirements for every attraction. If this is the case, I would group people by age and height also. So, for example, one of your groups could be with the younger children and the adults who will ride with them. That group could make Fast Pass+ selections appropriate for the group. Another group could have teens and the adults who will ride with them. They could make a different set of Fast Pass+ selections.
Jessica, you could select one attraction at each park that you will all do together. Because of age and height differences, your Fast Pass+ selections may be complex, but you can do it. You can meet back up at certain points in the day to dine together, catch a show or watch the fireworks. Be sure to also make dining reservations. I always make our dining reservations online, but if you have trouble making them online, call and speak to a cast member in dining at 407-939-1947.
My final tip - buy Memory Maker. When traveling with extended family, we use one Memory Maker to capture all of the happy and crazy memories!
Magic, memories and Minnie Mouse hugs,
Donyell