Do not allow your own feelings towards your ex-spouse to interfere. It can be easy to feel angry or hostile towards the other parent of your child, especially if they are badmouthing you in court. The best thing to do in this situation is not become angry, but instead use the behavior as an example to the judge. By not allowing yourself to become angry you are showing a great deal to the court. No matter what your ex may say about you do not allow it to cloud your train of thinking.
Step2
Outline the other parent's detrimental flaws that will ultimately cause harm to your child. There are many reasons for wanting to gain custody of your child. Some are more obvious such as sexual or physical abuse, and others are more difficult to prove such as brainwashing, parental alienation syndrome, sabotage, and manipulation. Use resources such as the internet and library to prove that your ex is influencing the children in a negative way.
Step3
Be honest and sincere in your plea. Do not try to gain custody simply to get back at your ex. Explain to the judge that you want him or her to be a part of your child's life but under better circumstances. Express your sincerity regarding wanting to do what is right for child - nothing more, nothing less.
Tips & Warnings
Be open to including the other parent in the child's life.
Maintain your calm and be open, honest and sincere.
Use professional terminology and back up any claims against your ex with proof.
Assess whether or not it will truly be best for your child to be with you or if you are using them to get back at your ex.
Children are often caught in the middle of custody battles.
Authority 
Comments
helm76 said
on 1/29/2008 A friend is going this right now. Her boyfriend has a felony conviction for money fraud will this be a problem for her?
Blackbear said
on 1/6/2008 Great advice!