If it works keep doing it. W keeps turning up to the meetings so keep doing it. If she didn't want to meet you she wouldn't turn up. The object of the exercise is not so much the subject matter, but it's about getting her used to being around you in a non confrontational situation. If you want to change the subject matter or the pretext, listen carefully to her when you next meet. Is there something in the conversation that you could use as a topic for a further meeting. All the clues will be with her.
With all the legal stuff all I can say is leave it to the lawyers.
