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How is Paternity established in Illinois?

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Establishing paternity in Illinois is generally very straightforward and easily outlined. Under Illinois law, if the parents were married at the time of the birth of the child, then the wife’s husband is legally presumed to be the father of the child. If the parents were not married when the child was born, paternity must be established.

If the parents were not married, then the biological father is NOT considered to be the parent until paternity is legally established. Whether the father plans to marry the mother of the child the next day, or never speaks to her again, paternity still must be established in order to create a legally-binding father-child relationship. read more

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