Pet Care Needed

My dog is small and 16 yrs old and needs to be let out around 4-6 times a day and walked just 1 block and back, however more is appreciated if it works out for caregiver. He generally eats at the same time as the cats and will have a few treats when hungry. He must wear a diaper to prevent accidents in the house. I have 3 cats and they need to be fed wet food twice daily and a little dry food in between. I've never left them alone overnight before, but caregiver can come and go during the day as needed as long as their needs are met. Thank you. I look forward to hearing from you.