If I was a TF lawyer, I would be popping champaign right there. She knows she owes money. Great. If your buddy knows she owes at least some of the money, then she must pay. Sorry, I have no sympathy. I am a TF member, so I am partly paying for the time of TF lawyers, the time that could be saved if she just paid.
One should always have empathy... you never know when that shoe will be on your foot.
V