Can I sue a law firm for violating a parenting plan?

My ex-husband hired a law firm to represent him in a child support modification case. When the representative for the law firm served the paper work only my 16 year old daughter was around. She is of legal age to accept. My daughter told him that she should accept the papers but he bullied her into it. There is a direct statement in our parenting plan that the children are not to be exposed to anything having to do with child support. By making my daughter accept these forms, the law firm representing my ex-husband directly violated that portion of our parenting plan. The next two packets of papers, which included financial documents were left on my front porch in plain sight. They were not concealed in an envelope. My children could have found them or my neighbors or a random person off the street could have picked them up and read them. This also seems like a violation of the parenting plan since my children could have been the first to find them and a violation of my right to privacy as well as a violation of how court documents must be delivered. Am I way off base here or should I speak with an attorney?