Sure you can apply for a restraining order, but it is not likely that one will be issued as there is no threat to this child or you. You forced the mother to sign away her rights under duress. The child knows his bio mom, grandparents and siblings. You have won this battle, but in the longrun you will lose the war. This is not a mother who abandoned her child or who's grandparents didn't have contact, you and your husband have as much responsibility as she, in all that lead up to this situation. Toys get broken when children play together, toys get broken when children play alone, they are toys, not a reason to prevent a relationship with siblings just because you have personal issues with the mother. If you have problems with toys getting broken, then have supervised visitation without going to court and creating a stressful environment. Don't say bad things to the child about his mother, grandparents and siblings, he is too young to understand the ecconomics of his adoption. There are two sides to everything. Put yourself in her shoes and see where you might be a few years down the line, or is that a part of your insecurity? Get some counseling, perhaps you can help creat a win win situation. You won the big prize afterall didn't you?