M..
You need to talk to a lawyer first.
If you don't get this done the right way, regardless of how bad of a parent he is --- he is still the father and the courts will stand by him because you up and left and did not do it right.
The father can call the police and tell them that you kidnapped the child and left the state and they will come and look for you. They might take her away from you for awhile, while they are trying to figure everything out.
I wish you the best of luck with this.
Congratulations on your up coming marriage.
God Bless you all.