Kind and patient maids come to our home

My work here is not heavy, but there is one situation that you need to pay attention to. You mainly take care of a mentally retarded child. She is not aggressive, but sometimes she is very close to maid and she is quiet to listen to music and play with toys! She needs to go to school from Monday to Friday, and the other adult also has to go to work. I hope the maid can be patient and take care of three of us. It would be best if they understand Cantonese! Thanks!