I now use a very trusted neighbor. I take care of her goats when she is gone and she takes care of my girls. I could leave my girls for a day or two without contact, but I don't. I think the eggs need to be collected daily and the hens need someone to double check on them daily. I have to say though that it took me awhile to be perfectly comfortable leaving them with someone other than ME. My neighbor is just as goofy about her goats and I am about my chickens, so it is a good match.
Be sure and train your caretakers. Don't assume they know anything about chickens....unless of course they have some.
P.S. The most valuable thing I have ever done was to train my chickens to come when they are called. I started it when they were chicks, several times a day, calling and then giving them treats. Even before they were big enough to come out of their pen, I would repeat this over and over, always giving them a treat.
I mention this because, a couple of my hens made a run for it, out of the pen and past my caretaker once when I was gone. I trained my caretaker how to get them back in the pen, and because the chickens were so conditioned, it was easy for her to corral the rogues and put them back in. Otherwise, she would have had to stay with them until dark and they decided to go in on their own.
Good luck and welcome.