What is the validity of a ruling in court when procedures are not followed properly?

divorce in newjersey no documents or proof of given facts and an in-law who stood up without being introduced nor sworn in or asked is the only testimony given wherein the judge was satisfied and made his ruling


Answer:
I hope you've acted promptly--you probably have 30 days to appeal and perhaps only 15-30 days to file a motion for reconsideration. You may be better off with an appeal, but I don't know how backlogged the Appeals Courts are in N.J. An appeal could take a long time, but you have some good issues from what you have said in your question. You didn't give us much to work with--how were you harmed? Financially? Was it a 'no-fault' divorce? Are there children involved? My best advice is to spend a couple of hundred dollars and visit a domestic relations atty for a consultation.
The ruling is valid until it is overturned on appeal.

If you can present other evidence, or cite contrary law, you can always file a motion for reconsideration with the judge who issued the ruling. But there's usually a very short time limit to do so.