If you hired a nanny for your child(ren), what requirements do you want her to have?

I’m interested in what the general public thinks about this topic. Feel free to include things such as cost you’d pay per hour (if it helps you determine this, I live in Ontario, Canada), what types of activities you’d be okay with your nanny doing with your child(ren), how you want meal preparation and housekeeping dealt with, what kind of health and education requirements should be met, and more. Thanks in advance! :)