Wow! What a piece of work she is!
It would be worth giving eBay a call to bring this to their attention. I don't see anything in the Feedback Abuse section that would apply in this case but you could try reporting it through the link below. Click on the "report to us" link and select Other. Make them aware that she has left a series of neg's because she lost her job & not for seller non-performance.
Link
Possibly you could contact the other sellers and ask them to do the same. If eBay gets enough complaints and sees the pattern they may do something....I'll keep my fingers crossed.
Good luck!