She has a year lease. I have to evict her and it's going to be a pain in the ass. She is a pain in the ass. Everytime I see her or speak to her she threatens me with lawsuits.
You have a difficult situation, and there is not much I can tell you that will give you any quick relief. You might want to offer her some re-location money to get her to leave early. Or ask your landlord to let you out of your lease early. Since you are in essence her landlord, you need to be aware of what you can and cannot do. Go to http://www.dca.ca.gov/publications/landlordbook/catenant.pdf for a booklet that should be very helpful to you.