Glad to see you think so. It felt like I was doing the right thing, and ultimately have to keep my priorities straight.
I also agree with your assessment that at this point re-confronting could be counterproductive. She knows she is having an A, so rehashing it won't solve anything. I will enforce my boundaries (right now I'm not wanting her to make herself at home when she comes over, because the last time she did OM was waiting outside and it seemed like she was trying to provoke a reaction). I told her to come, get D1, and leave. Same thing when I pick up D1 - I come in, get her, and leave.
I'm sure her attorney has to be beside herself at the bill of goods W probably sold her initially. They (W/MIL/Attorney) were initially doing the whole 'bully bully' thing and acting overconfident, but now seem to be acting with extreme timidity.
I'm sure she has never seen a client disarmed this quickly, and we haven't even really gotten started yet. I'm apparently getting too good at this.
"You can't reason someone out of a position they didn't reason themselves into."