I am the biological father of a 10 year old boy. I have known him for 2 months. His mother died two years ago, but told me before she died that I had a son. They both decided to raise the child as their own, but soon after divorced. After she died, I got adjudicated as the parent. I have temporary joint custody with the step dad. The child still lives with the step dad. My question is, What are my chances of getting sole custody of my son?