I see the wisdom in what you are saying. I am going to start tomorrow:
1) I will answer the phone out of courtesy, but if it is not immediately urgent, I will just tell her "I do not wish to discuss this over the phone, please send me an email"
2) I will not respond to any texts that are not completely benign (For example "Where is D12's practice?"). If it is about money, or some other contentious issue, I will respond via email after a sufficient wait.
3) If the subject of money comes up, I will simply say "I am itemizing all my expenses and will send you an invoice at the end of the month. Please do the same, I will review it monthly and send you any money I feel you are owed." If there is a disagreement about what she feels I owe, then she can proceed with a court action, but I will not spend any time discussing it.
