Babysitter

I am looking for a great babysitter to help with my daughters. I have a 20 yo with autism and her 13 yo sister in Rancho Palos Verdes. Must be someone with knowledge in caring for someone on the spectrum. We would prefer someone who could help out with light housekeeping and homework help. We would prefer a babysitter who has their own car, who does not smoke, who is comfortable with pets, who is CPR certified and college degree.