Hello again Michael,
My name isXXXXX'm a licensed attorney. Glad to try and help out.
Sure sorry for your circumstances, truly. My heart goes out to you.
I have solid family law experience and a special interest and passion for LGBT legal issues. Accordingly, I offer you (and please relay to your partner) my very best wishes for a joyous and happy family life!
I'm a native Nebraskan myself, and our region (including South Dakota and Minnesota) are far from being particularly "friendly" in such cases (with the notable exception of Iowa). In fact, Nebraska (and other jurisdictions) are downright hostile to folks in your shoes. All hope is not lost, however, not at all. In fact, South Dakota has no explicit statutory prohibitions (adoption, donor insemination, surrogacy, etc.) on LGBT couples wishing to accomplish your objective. That's very good news! Now, the trick is finding competent legal representation and resources to turn the substantive law into a reality for you good folks. Toward that end, I would suggest contacting the following resource, which specifically handles parenting matters:
Lambda Legal Defense & Education Fund
Midwest Regional Office
11 E. Adams, Suite 1008
Chicago, IL 60603
Help Desk Online Form
If you have a follow-up question or need clarification, please just say the word by using "reply" to reach me.
I hope all works out for both of you.