Does anybody know how much a live in nanny for my mother should be paid?

A live in for a senior is normally considered a care giver or a health aide not a nanny.
What will their qualifications be with they be a CNA or a LPN or merely a non certificed aide of some level.

It also depends on what state you live in. I am from PA and if you are looking for someone without certification I would say about $10 per hour, a nurse your looking to pay about 13-15 for lpn and up to 20 for an RN. But it does depend on the state you live in as rates of pay in the healthcare field greatly vary.