After her parents' deaths, Judith moved in with her and Elena to look after them. She inadvertently invited both Katherine von Swartzschild and Damon Salvatore into the house. Margaret coped surprisingly well with her sister's apparent death, as she was told that she had simply gone to visit their parents. She gained a father figure in Judith's husband, Robert Maxwell.
After the Celestial Court altered reality, Margaret was meant to forget about Elena's "death", though she seemed to still remember certain things, and continued to live normally as a whole family.