Oopsfamily Maddy May Stepsister Is My Best Best Guide

I need to make sure I get the family structure correct. Let me double-check: Tana Mongeau has her daughter Chloe (biological) and from her previous relationship with Nicky Whistmoor, their son Ethan, and from her relationship with Brandon (if that's her husband), her current husband, perhaps they have children adopted or from his previous relationships? Alternatively, the step-siblings in the OopsFamily include Maddy May, Charlie, Ethan, and Lexi as step-siblings to Chloe. So Maddy May and Chloe are step-sisters. Therefore, in the text, I can say that Maddy May's step-sister is Chloe, and they have a close bond.