Well done. And keep in mind she may counter attack with many groundless, and bold faced lies. She will most likely ask for ridiculous actions from you in order to get your eventual compromise closer to her position. It is often all about the compromise. Stick to your guns.
I really like the checklist idea. Definitely something to do, costs nothing, and has real practical application.
Since she is not working towards sobriety, she is still a wild card. She is still unaffected by the truth and lives a delusion. She can say the most outrageous things with total conviction because she actually believes them.
Be sure and keep your cool. Keep your mouth shut. Look straight ahead. Play your role to win at all costs with no compromise.
Best wishes.