Since you have a lawyer that is the person who should be giving you advice. Get an appointment with him and ask what is the legal strategy, what are the obstacles, what are the strengths and what is the legal process that the court will follow in your case. Once you have all the information you should have a better understanding
I practiced in Yuma before moving to Prescott, AZ. It is a close legal community. You definitely need someone who will fight for you. I would need more details to know if you have a chance to get sole legal decision making. If you are not comfortable with your current attorney, you should get a second opinion.
This answer is intended to only provide general information and does not establish an attorney- client relationship. The information is not guaranteed as sound legal advice since most questions are very limited in nature. You may wish to consult with an attorney regarding your specific case.
Sign up to receive a 3-part series of useful information and advice about child custody law.