Lea's adoption doesn't change anything, of course. I've been Lea's mom since before she was born (indeed, since way before she was born. I even transported her while she was a tiny blastocyst frozen in a test tube from one fertility treatment center to another when our Reproductive Endocrinologist switched practices). But the adoption formalizes my legal rights and responsibilities to Lea and that is a very, very good thing.
So, as both Hallie and Lea love to say when they jump into our arms for a big bear hug, "I gotcha!"