If you are getting divorced and have children, part of the divorce agreement will involve determining where and with whom the children will live. A child custody lawyer can help you negotiate custody, either by agreement or in court. The custodial parent (the one the child lives with) earns the legal right to make decisions regarding the child's lifestyle, welfare, and education. Some parents opt for joint custody, which means children divide their time between both parents' homes, and parents share the right to make decisions on behalf of the children. If you as parents are unable to agree on child custody, a judge will decide for you.