My husband wants to adopt my daughter. Do we need to get a lawyer?

My husband wants to adopt my daughter. There is no father listed on the birth certificate, but she does have the last name of the biological father on their. The biological father does not pay child support and does not have any contact with us. Last time he saw her she was 6 months old. She is now 3. Does he have rights? And to add my husband to the birth certificate, and change her last name, do we need a lawyer to do this? - Is this your question? Add additional information