I use a service that comes to the house... the lady comes 4 times per day, she will walk them, play with them, feed them, change wee wee pads, etc. She is really great. I call her everyday and she doesnt care
They love her.
If you are having someone come in make sure:
they are bonded and insured;
they have permission to take your dog to the vet and know what you would want done.