That depends on exactly what happened. If you authorized an electronic filing that would be considered your signature and you are responsible for the information on your return. Unless they deliberately filed an incorrect return your only recourse might be to have them file an amended return for you? You can call for a free consultation. www.attorneysamwalker.com 714-943-2336.
Your boyfriend has two separate issues the probation violation and the new charge. Even if the drugs were not his he could still be found guilty of a probation violation, depending on the facts and circumstances.
I suggest you talk to an attorney in person and do not reveal any more information on this forum as it is not confidential. You also may have a child custody issue if the Department of Child Support Services becomes aware of the situation.
You need to go to the court and obtain copies of all the documents that were filed in your case to see if there was any fraud on the part of your x spouse. You should have been served court documents prior to the judgment. If you were not served or not served properly then you may be able to have the judgment set aside.
If you do not respond the opposing party may proceed by default and the judge will order everything as requested on the forms. If you disagree with anything you must respond or you will lose your right to contest that issue. It is always best to answer and obtain a notarized agreement filed with the court as the other attorney's have indicated. You should seek an attorney to help draft the agreement to ensure that everything works out as planned.
It would be helpful to know what type of RFO you filed, Dissolution, Child Custody etc....? If the two of you can come to an agreement you should contact an attorney to draft an agreement and provide you with the correct forms and mandatory disclosures (if needed) to facilitate an order/judgment. If you file a dismissal which includes the attorney's fees and it is signed by both parties then all requests by each party will be dismissed.
I agree with the other attorney answers, call a few of us on avvo and get the free consultations that we offer. You may want to hire one of these experienced attorney's to better represent you if you feel the PD is not doing you justice.