My question involves adoption law for the State of: Florida

My child has not seen his biological father in over 4 years. I have received child support sporadically over the years. Only through garnishments of unemployment or the state enforcing it through threats of suspending his driving lisense. My husband and child who is 14 wants the adoption. How long will this adoption take if the biological father agrees? How long will it take if he does not agree and we go the route of proving abandoment? Do you think this falls under the law of abandoment?