Changing a Child's Name: Verify a Child's Name Change from One State to Another

My question involves name change laws in the State of: Michigan. I work for a foster care, adoption agency need some advice. My client is in the process of being adopted, his birth mother just informed the court that she had his name changed in Michigan. The child was born in Toledo. What are some steps I could take to verify this information, and who should I contact? In order to proceed with adoption I need to retrieve the legal birth document.

Changing a Child's Name: Verify a Child's Name Change from One State to Another