I feel for you, and have been in a similar situation.
My advice, from experience:
Don't sign anything without a lawyer.
Give it time, don't do or say anything aggressive whatsover...it gives them too much ammo.
If she hasn't got her won lawyer yet, Try to get your lawyer to make contact with her and see if it can be worked out with just the one lawyer. (if she's telling fibs, this should be enough to get her to set things straight)
Just remember....You have rights, and with a good lawyer, can get very good access to your child.