For the latest information on adopting from Ukraine:
https://travel.state.gov/content/travel/en/News/Intercountry-Adoption-News.html
Bringing a child home on an IR3 visa:
https://visaguide.world/us-visa/immigrant/ir3/
Michigan does not require re-adoption. Here’s the next step to obtaining a Michigan birth certificate:
https://https://www.courts.michigan.gov/4ac57f/siteassets/forms/scao-approved/pca350.pdf