Hi there, William!
I'm so happy you brought your question to the Disney Parks Moms Panel. It sounds like you have such a fantastic trip planned with your group!
I'm pleased to inform you that you are more than welcome to use Disneyland Resort's
FASTPASS system if someone in your group is in a wheelchair. If mobility is a concern, you definitely want to check out
Disney MaxPass as this service allows you to make digital Disney FASTPASS selections right from your mobile device for everyone in your party without having to walk to a FASTPASS distribution kiosk.
Before your trip, I suggest reading the
Guide Book for Guests with Disabilities online. This outlines the procedures for using a wheelchair with each attraction. You can also view a list of
attractions with Accessibility concerns online as well. If you will need to
rent a wheelchair on property, there are a limited number of wheelchairs available near the entrance of Disneyland Park. I suggest arriving early in the morning to ensure you can rent one.
I hope this helps, and please feel free to return if you have any other questions. Have a magical day!
-Jennifer