Leah is the older sister than Lori because she was born first than Lori. Unlike her sister Lori, Leah is kind and caring to her siblings. Lori is jealous of her older sister because she is more trustworthy to their mom and dad.

Although her sisters fight a lot for reasons, Leah never fights because she wants to take care of Lincoln and Lily since their are her favorite siblings. Leni, Lucy, Luna, Lana,and Lisa are also Leah's favorite sisters, except for Lola, Lori, Lynn, and Luan.

Leah hates Lori the most because Lori threaten Lincoln to come to her golf game or she will turn him in a human pretzel and Leah told Lori to shut up and it causes the two to fight abusively. The parents stopped the fight and Lori and Leah are becoming enemy sisters. Since al the sisters have talents, Leah doesn't have a talent so that's why she and Lori hate each other.

Although Rita and Lynn Sr are the only parents who don't help, Leah teaches them how to become good parents and she makes a good teacher. Leah sleeps with Lori and Leni since Leah is a best sister to Leni instead.

Leah is very helpful like Lincoln and she is willing to help her sisters whether it's homework, sister fights, and chores.