Depending on where you live…I would love to help you out. I do some pet/house sitting but am not one of those multiple-dogs-on-a-leash walkers!
I am generally free most of the day and can even host pets at my apt. if needed/wanted.
Is there a way to contact you off line if you are interested?
Otherwise, you might want to check your local listserve and see if someone in your ‘hood can help!