MOB Shoes

Hi everyone! I’m getting married in December- and have been starting to help my mom look for MOB outfits. She will most likely be in a pant suit but we are really stuck on shoes. Unfortunately she had a stroke last year so she has some mobility issues. Her walking drastically improves when wearing supportive sneakers, she said it helps her feel more balanced. I told her I was 100% okay with her wearing sneakers but she wants to dress up. Every orthopedic “dress shoe” I’ve seen has been slip on. I don’t think this will be an option and worry about her foot slipping out and her falling. If anyone has any suggestions I would be extremely grateful thank you so much!