This doesn't sound right to me.
She is mean and mouthy to you and your children, yet she's not overjoyed with a big privacy fence?
This all started as you said, over this fence?
What was life like before
the fence. How can the fence cause all of this.
If you have 9 police reports, and there has been no resolve, I'm not so sure these reports were thought to be worthy of further investigation and/or harassment charges by the police.
You say the police have done nothing, and I have to wonder why.
You paint yourself and your children as innocent victims here, and that can't be entirely true in my opinion.
Has your neighbour also called police and/or filed complaints about you and yours?
Are you saying she is out to get you because you are Mexican? What have you retaliated with if you are both within earshot of each other.
Sorry, I'm not buying it.
Just my opinon.