How do I delete person as manager of my mother's account
This person is a manager with me on my parents account. I go to try to remove her but there is no x by her name
If that manager is no close relation you can remove him/her using the actions menu (manager options) on your mothers profile. Use the x on the name to remove a manager.
You may also want to look at the FAQ see https://help.geni.com/hc/en-us/sections/206535747-Profile