I am not sure what to think. Sorry for the long post, but please help.

[Lou]

100% agree with momof4

[mom-in-alberta]

100% agree with momof4

As do I. I would no longer engage in dialogue with this woman, either verbally or via email. I would, however, document any attempts at communication that she makes toward you. Save her emails. Record her voicemails and save them.
I also highly doubt that she is actually going to take this any farther than she has. It costs both time and money to go to court, and effort as well.
I, too, wonder what the REASONING is (in her mind) that you owe her more money? She must have said why she feels like you "stiffed" her. What were the terms of the contract regarding dismissal/termination of care? If there was no contract at all, you will for sure come out the winner here (as much as can be said in this case, anyway). Does her agreement call for a full month's notice? Mine does, FYI. But I don't disagree with your pulling him, I am glad you did. Just curious what her rationale is, other than greed....