Why respond? Do you think you will change her mind?
This is what lawyers are for.
Remember this is her starting point, then you negotiate.
keep you kids at the top of the needs list as you go through this.
Having a MIL who babysits one day a week is not like having an H who is fully involved in the childrearing. Were you fully involved with the doctor visits, daycare arrangements, diapers, feedings, laundry, disciplining, etc while you were together? If not she probably thinks you left the marriage long before she did.
Take what you can from her message and continue to work on you. If you contact her now it's because you want to make a point and prove she's wrong and you're right when it really doesn't matter.
Me 57/H 58 M36 S 2.5yrs R 12/13
Let me give up the need to know why things happen as they do. I will never know and constant wondering is constant suffering. Caroline Myss