Don't know if anyone has any experience of this and can help but we adopted our son 4 years ago at 11 months.
We are approved for a second child and have been actively trying to look for a second child without much joy.
We did express an interest in a 3 year old and much to our surprise, the child's social worker is entertaining us (i.e has read our PAR and sent CPR and emailed social worker to make sure we received the CPR etc) as I know it's not usually recommended to adopt a second child so close in age. I feel like it would be great for our son to have a ready similar aged walking, talking playmate lol .... but I understand the issues can be more complex than that.
Anyone who can shed any light ... it would be most appreciated