HomeWorldDNA test reunions now sparking inheritance battles as surprise heirs step forward

DNA test reunions now sparking inheritance battles as surprise heirs step forward

More and more people are finding their biological relatives via DNA testing, only to be pulled into an emotional and costly fight over inheritance. A recent report in the Wall Street Journal underlines how these surprise heirs are remaking estate battles and forcing families and courts to confront difficult questions of law and morality.

December 01, 2025 / 14:09 IST
Story continues below Advertisement
DNA discoveries ignite unexpected inheritance disputes (Representative image)
DNA discoveries ignite unexpected inheritance disputes (Representative image)

A recent article from the Wall Street Journal shows how at-home DNA kits opened the door to inheritance conflicts that no one saw coming. Take Carmen Thomas of Boston, for example. Thomas was raised believing her dad was a man named Joe Brown. When she matched with members of the Brown family on 23andMe, she was excited to learn she had two likely half-sisters. The women met, bonded over boba tea and family albums, and Thomas was welcomed into their grandmother's home.

But just a year later, the reunion became a legal battle. Thomas sued the Brown sisters and their mother for a share of a multimillion-dollar medical-malpractice settlement awarded after Joe Brown’s death from an undiagnosed aortic aneurysm.

Story continues below Advertisement

She argued that she was entitled to share the compensation as his biological daughter. The family’s lawyer said they were stunned by the claim that arrived long after Brown’s passing.

According to the Wall Street Journal report, such cases are rising sharply as DNA tests uncover previously unknown children. In most states, biological connection can be enough to stake a claim when there is no will or trust. Other states take into consideration the nature of the relationship with the deceased or the timing of the claim. Even with a will, general terms like “to my children” or “to my descendants” may unintentionally include biological children that the family never knew about.