Walk 3 energetic little ones to preschool and onto bus. - Full-time / Part-time

We are a family of 5 who recently moved back to the US after 4 years overseas living in Dakar, Senegal and Seoul, South Korea for work. We have 3 kids, ages 3 to 7. We need a sitter who is very patient and loving to help our kids adjust to a big transition. We need someone from 7:50-8:50am two days every week (this week Monday 3/11 & Tuesday 3/12). Which two days each week will vary in future weeks and there could be an additional day, but we can provide notice the Friday before each week. Meet kids at our home, help get shoes and coats on to get out the door. Walk all three to LANK preschool and drop younger two off there. Walk oldest back to bus stop next to home and wait with him to get on the bus to school. Location Reston, VA next to Lake Ann Nursery Kindergarten.