Babysitter - Full-time / Part-time

Second child, age 4, has genetic condition and is currently on speech and occupational therapy every day (afternoon). Eldest son (age 5) and youngest child (age 3) need to stay at home while second child is undergoing therapy. Father wont be able to help as he is living in his parents house and awaiting for appointment/check up. Mother needs help in caring for the 2 other kids, while attending to the needs of the second child. Kids love watching movies and going to the park.