Welcome to this forum , this a good place to come for support and for advice,questions and conserns.
I am also a birthfathers wife and have gotten a lot of good support on these threads for a few years now, and hope you will keep coming back also as there are many people here who have experience in these areas.
I do hope everyone in your B-daughters life can all agree to do what is best for the child, always keeping the childs best interest in mind...and it seems like getting to know you too is what she wants to do.
And keeping "all" her loved ones around her seems like what would truely benefit her the most. (Imo)
The more people to love her the better..
please pop in to let us know how things are coming along.