Most adoptions are contested by the family through the courts.
If he was in care for a year (like my son was) I'm guessing the SS went through the formalities of 'giving the birth family a chance' which is highly debatable whether or not they always do.
They seem to have the 1 year cooling off period to make sure baby and birth family lose any bond, then it's easier to get a judge to agree that the child may aswell be adopted out from not fully competent parents.
All you can do is reassure them that he will be taken care of, and tell them how lovely he is.
Don't expect anything useful from SS.
The important people in this are you, your partner, the baby and the baby's birth parents.
Mostly you and the baby, as how you are will determine how good an upbringing the baby has.
SS rarely have the time to say or do anything constructive.
I hope it goes well for everyone.
I would expect that the birth parents aren't in the greatest states mentally right now, as not many people would be at losing their child, soremember it's a massively traumatic time for them. How they come across now isn't how they'll always be.
If they don't seem appreciative of your efforts or so interested in little things that may mean the world to yo,like how the potty training is going, if he's saidmuch words, it's because they're in mourning.
But I'm sure they'll remember everything you say, and actually enjoy that information at a later date.
My son was taken against my will 8 years ago, and it's only now I can really appreciate all the adoptive parents have sent tome, pictures, updates, I read them backnow and now the mean the world tome, obviously back when I just wanted to die I wasn't so interested.
So birth parents can be eternally thankful at a later date for how you act now.