My daughter doesn’t want to spend overnights with her father does she have to?

Maybe. See the prior answer. I suggest you consult with an experienced family law attorney.

It could help. It would have to be in a report of certification. But changing a parenting plan isn’t easy. I suggest you consult with an...

CCan I file for my almost 18yr old?

File what? More information is required. Is this a tax question or an immigration question?

Can I sue my wife's ex boyfriend with whom they have one child together?

There is no issue for a court to address here. This sounds like a marital issue.

The GAL can advocate for those things if he believes that is in child’s best interest.

I need help in trying to keep my brother little girl safe

Discuss the facts with a family law attorney in a consultation.

Denial of adjournment?

You can’t appeal a denial of an adjournment request. I suggest you appear and re-new the request on the date scheduled.

How to file contempt?

You need to file a motion to hold him in violation of litigants rights.

What is the most cost-effective way to get my ex who is in contempt for over 1 year post-divorce to follow the terms?

Your only option is to file an enforcement application.

My fiancé is on unemployment and child support takes money every week how do he have a warrant for his arrest if it’s being paid

If there’d are substantial arrears, he could certainly have a warrant.