I would like to find someone to check on my 97-year-old husband (who will be wearing a Medical Guardian device soon) twice a week while I go out for a few hours. He can be left alone for 20-30 minutes while the carer walks our dog.
It makes the most sense for YOU to walk the dog before you go out. A dog can "hold it" for a few hours. I also do not understand that you cannot hire a cook but can hire outside help which is more costly. Have you considered adult day care?
Your husband is 97. Do you really want to leave him alone so that your dog can go for a walk? A lot can happen in a few minutes.
What kind of health issues does your husband have?
Best wishes to you and your husband.