Yes. You and your wife will probably need an attorney to file a tort claim, a requirement in Washington before filing a suit against a state actor. There are usually some procedural pitfalls associated with filing such a claim. I would not attempt to do it on my own if I were you. Tort claims must be completed within a certain time period so do not delay.
Your question is too brief to give competent advise. You should consult with a lawyer. Washington is a comparative fault state. Some of the answers here instruct you what to do based on whether you or the other driver caused the accident. However, it could be that you are both at fault. If you think there is any argument whatsoever that the other driver shares some responsability, contact an attorney - especially if you suffered an injury in the accident.
Let's break down your question by looking at a possible lawsuit against each theoretical defendant. The children: In Washington, children of "tender years" are immune. You do not specify the age of the children but if they are under 12 they may lack the mental ability to commit a tort. In Washington, the parents would not likely have responsibility for the acts of such small children unless they act with gross negligence - something more egregious than mere negligence. Mother: The...
Maybe. Some states allow parents to sue agencies charged with the placement of children in foster homes while others do not. Consult with a local personal injury attorney to be sure. The judge however enjoys judicial immunity and cannot likely be sued.
I suggest starting a lawsuit against your ex and the web site and ask the court for injunctive and declaratory relief. You should also check with your local prosecuting attorney's office to determine if it is willing to pursue criminal charges.
By using the phrase "chargeable offense," I am uncertain whether you are asking if this was a crime. It probably was not. However, it may be a civil tort. The law prohibits tortious interference with a known business relationship. I would have a lawyer send her a letter telling her it is against the law. If the behavior continues, I would consider having the lawyer file a temporary restraining order (TRO) and permanent injunction to prevent this from happening again. Good luck.
Probably, unless she knowingly, recklessly or negligently provided false or misleading information or her employer prohibits her from doing this and it was outside the scope of her duties. Otherwise, you have probably signed a HIPPA release allowing your doctors, and their staff, to communicate. Moreover, as a practical matter, you want to stay on the good side of your past and present medical providers so be careful about making a big deal about it.