Dog sitting

Hi. I would like to watch your dog/ dogs. I currently have a dog myself & I have a fenced in yard with some toys. I prefer dogs under 45 pounds & that are spayed or neutered, also up to date on their shots. I can also do weekends, days, or by the week. I would like to introduce the dog or dogs to the dog I currently have of my own before we do the dog sitting. Thank you.