Seeking A Regular Sitter For 3yr Old

We have a 3yr old son and we're looking for a regular sitter. We would likely need help several evenings/days a month. We would like someone who has reliable transportation (mostly in case of an emergency), can prepare meals, give a bath, read bedtime stories and get him to sleep. We also need light housekeeping such as folding laundry, picking up the toys, cleaning the kitchen and feeding the dog. We want someone who is very responsible, reliable, flexible and trustworthy. Prior experience being a nanny or regular sitter for a family is preferred. Montessori certification is a huge plus!