Nanny Job in Thornhill, Ontario

I am looking for a Housekeeper/nanny. the house has to be kept clean at all times, laundery/ironing, cooking, keeping the garage clean, looking after the family dog too. I need soeone who is over 30, healthy, clean record, does not keep an eye on the clock and is flexible. I need the person to become part of the family. I have 3 kids, son who is 19 yrs old and twin girls who are 14 years old. Wanting full-time person is to ensure that someone is home when my girls come home from school, they are monitored, dinner will be ready, and the house looks spotless.