When I return to Skyrim I will be playing as a Dunmer.
She will be part of House Telvanni.

I dont know how to roleplay a member of house Telvanni because I dont know much about it.
She will live on Solstheim and rarely go to Skyrim.

What schools of magic would a Telvanni wizard use.
what CQB skills would a Telvanni wizard use.
what stealth skills would a Telvanni wizard use.
what exactly would a Telvanni wizard do.

I have created her but I haven't named her. http://i.imgur.com/ePY8fSw.jpg She needs a name and I need suggestions for the name.

Telvanni are the Master Wizards of Morrowind. I don't think there is a study they wouldn't touch.

Most Telvanni of the past were either mages, battlemages or nightblades, so it is up to you. As long as the main focus is magic, it should be okay.