If you want to get really vindictive, go to the media. They always love a good witch hunt. Talk to your lawyer first and express interest in taking her boss down and that you where curious about going public with the issues.

Thats the last thing she needs if everything you have said is correct. Isn't this the same woman who ran a company or had stake in a company that was hired by a city to do work because she also worked for the city?