A pardon is relief that can only be granted by a petition to the Board of Pardons and Parole, a division of the Department of Corrections, State of Idaho. If you were granted a withheld judgment and you had o probation violations, you are eligible to have your case dismissed by filing a motion with the sentencing court, which is likely more easy to accomplish than a pardon. Lots of good attorneys in Boise can help you with this for minimal cost. Good luck.
Typically, a state has no interest in taking custody of children when a parent dies unless the child is without supervision or any family member who can assume full-time care of the ch8ld until a legal guardian is appointed, if that becomes necessary. If you have named someone as a guardian of your child upon your passing, and that person understands they will have to quickly petition the court for guardianship, you should not have to do anything more.
In Idaho, if you receive a withheld judgment in a criminal case, it means you are entitled to ask the court to reduce the charge to a misdemeanor or dismiss the charge entirely AFTER you have successfully completed a period of probation. If you had any violations of probation, you are ineligible for the relief. HOWEVER, even if you get the charge dismissed, all of the record, including the original conviction, remains on your record and Idaho has no reliable procedure to expunge your record....
If you received a withheld judgment, you can have the charge reduced or dismissed if you completed probation without any violations. However, you must file a motion for this to happen and, even if it does happen, the fact that you were convicted of a felony at one point remains on your record.
In most cases, it is possible to transfer probation. You didn't mention whether this was misdemeanor or felony probation but in either event, you should discuss the possibility of a transfer with your PO. If you want to transfer to another state, it is more complicated and difficult.
First and foremost, don't discuss what you did in this forum. Those issues should be discussed ONLY with your attorney. Anything found on this website can be used against you. Secondly, you can request a public defender at your first appearance. You will have to fill out a financial affidavit to demonstrate that you cannot afford to hire a lawyer. Third, follow your lawyer's advice. Finally, Walmart often tries to get people to pay a$250 civil penalty for the offense. Don't agree to that...
It is not a good idea to talk about the facts of your case in this venue. Anything you say on this site can be used against you. The actions you describe sound more like a battery than an assault as you made physical contact with the nurse. The question of whether you INTENDED to strike the nurse is likely something that will be decided by a jury or the court. You should consult with an experienced criminal defense lawyer.
As the biological parent, you have a lot of control over the custody of your child. If you and the father agree on that, no one else is typically able to interfere. In some cases, grandparents can intervene in the case if they can show they have been acting as de facto parents of the child for some time.