Hi I ave a 9 month old baby and I don't know who his father is and my new boyfriend wants to adopt him how do I go about doing it?

First you will probably need to get married. Most states require a couple be married for at least a year to approve a step parent adoption.

Second, you will need to determine who the father is to get consent for the adoption.

Third, you will need an attorney to prepare the adoption petition, subpeona possible fathers for paternity testing, prepare the relinquishment of rights agreement etc. So I would start shopping around for an attorney. Many will give you an initial free consultation that will answer the question of whether you have to be married and for how long. They can also give you an idea of fees so you can start saving.