A paternal attorney is someone who practices family law, but not all family law attorneys are considered paternity lawyers. Establishing the paternity of the child is very important to determine who is financially responsible for the child, who has custody of the child, and other legal issues related to the best interests of the child.
A paternity lawyer is one who deals with paternity issues and can help you in taking the right decisions. The fact that the couple married does not mean that the man gave birth to the children that the woman gave birth to. The father's legal question was about proving that his wife was right and that the children he had during the marriage were indeed his descendants.
Under the justice system in most countries, when a child is born to a married woman, the husband is automatically considered the father of the child. If the couple dissolves the marriage, the court automatically orders the husband to provide for any children born during the wife's marriage. The man had to pass a paternity test to prove the child was not his before the court released him from custody.
The mother's concern is that the man she marries will try to say the child is not hers just so she doesn't have to feed the child. The lawyer in charge of the mother's affairs must prevent the alleged father of the child from harming the mother's reputation by making false accusations. The mother should hire a lawyer who is experienced with this type of litigation.