My wife is unemployed and feels my mother needs bomeone here with her now in Missouri can she get benefits, and will my mothers ss be cut if living in the same house mom is 92

A family member normally can not get any payment or benefit, you will need to hire someone though a medicare approved agency that is licensed with your state, they can provide care givers for her.

Of course if your mother is wealthy and want to just hire and pay her as a private care giver she may.