@Diana *********
- I'm not 100% sure, but as your parent just be aware, there MAY be a requirement to show a medical reason why she's dependent on you. It might be best to stop into the immigration office that you report to and ask them for the requirements for your mother to get a Non-O as a dependent to you/your Non-B. Maybe the mods
@James *******
or Lloyd Turner can confirm (they're awesome).