What are the legal procedures to evicting a roommate who is not on the lease?

Question Details: I have a roommate who has started many problems within my group of friends, including our leaseholder who's away for basic training for the National Guard. I was left with authority as a leaseholder. This roommate that is causing problems also has never paid rent on time and still owes for 2 months at least. Is a 3 day notice all that's required? Or does she not even need notice, as she's not on the lease? Either way, if she's out of town for another week, is the notice effective immediately if given over the phone, and by text message?

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