Babysitter Needed for my Children

My husband and I are looking for someone who can care for our child as I transition into working early afternoons and he commutes back home. It would be for about 3-4 hours going into the early evening, latest around 6:30 p.m. I will be mostly working from home out of my office in the basement while someone watches him. We do have one very friendly golden retriever, and two cats - sitter should be comfortable with them but responsibilities would be solely for our child.