I need to know if you are still legally obligated to pay for a child that has been adopted

Adopted by strangers (to you) or adopted by a new husband?

You can not buy children, that is illegal, so if you had a deal to buy a child you are adopting, I doubt the adoption would be legal for one, but no one can inforce the payment for the sell of a chaild.

Now if you mean you are getting a divorce, and have an adopted child, yes, you will pay child support just like it is your own child ( because legally they are)

If you mean you are the birth mother and father, and a child is adopted, then no you do not pay for their support after they are adopted.

Your question could mean many things, not sure exactly which you are talking about

Please clarify your question. Are you asking if you have to pay child support if someone else adopted your bio child? Are you asking if you have to pay child support for a child you adopted but are now divorced from the other parent?