To particularly help my mom so that my sister and I can enjoy the wedding. My mom had a stroke about 9 years ago and is ambulatory with a walker, but will need help in the restroom at the wedding and getting changed and ready for bed at the hotel room after the wedding and we would like to have a caregiver at the wedding to help my mom with these tasks so that my sister and I can enjoy the wedding. My dad is ambulatory with a walker also, and does not need any special help with ADLs. Any advice?
But note the agency would probably be billing your for 24 hours or more depending on the travel time, staying overnight where you pay for his/her hotel room, and return travel time. It would be worth every dollar.
I would also do everything I could to make the caregiver feel welcome at the wedding, introducing her to your family.