Season 4 of Family Law finds Abigail Bianchi tackling intriguing new cases as she juggles work, family, and her love life. Abigail's father Harry, and her half-siblings Daniel and Lucy face their own unique challenges, balancing their ever-complicated professional and personal lives. The team continues to grapple with unconventional cases this season including surrogacy, parental liability and "rental families" – all while managing their own fraught family dynamics.