Except, Todd and Julie not only have custody of Chloe, they legally adopted her.

“I handled the formal adoption of Chloe by Todd and Julie Chrisley,” Jessica Doyle, a family law attorney, told People. “Angela Johnson’s parental rights were terminated when she voluntarily surrendered her parental rights to Todd and Julie Chrisley on March 24, 2017. She has had no contact with the minor child since 2015.”

Source: https://www.distractify.com/p/chloe-chrisley-knows-best-custody