Well, no rush now. A huge weight has been lifted in our lives!BioM has recently "gone away" for a while. She will be eligable for parole in 3-5 years. That would make my SD 8-10 by then. We can wait and do the step-adoption, and not have to worry about BioM in the mean-time. My SD knows of BioM but only by her 1st name. SD also knows she grew in BioM's belly, that she didn't come from me, but I am her mommy. When we do get to do the step-adoption, our family will be complete!
Many thanks to BalesGal for all the helpful info!