Don't look so negative at this. First thing is start eviction process and get her out. Far as collecting once you get an judgement there are options. Garnishment, liens etc
Cwsculptor, it appears you are on top of everything. Good for you!
I suspect your lodger knew you were in the process of getting her served and that is why she has made herself scarce. Either that or she did get the 3-day notice to quit in her PO box and she is avoiding you.
I did look at your other thread, and since you are going to get rid of this loafer... I mean lodger, planting marijuana isn't going to happen.
I doubt very much that she had a legal reason to plant it anyway.
Also, check your private messages.