I can so relate to the being blamed!!! If you read my "toxic family members" thread, sometimes family members can even substitute and dish out further abuse that used to be dished out by the A.
It is like a wrestling tag team.... A is down and out and has now tagged up with his brother. Now it is his brother's turn to threaten, bully and push me around.
It has been quiet for a couple of weeks, but I fully intend to involve the police if they ramp things up again in the coming days.
Stay strong - you are doing the right thing to improve you and your children's lives!!