When you have your hearing in 60 days, let the court know then and have your evidence ready. Only talk to mother via written form and a parenting...

Sure, but she should have done that 15 years ago.

More than likely they will come after you for child support. You need to report NC parent for fraud.

If sister is there you cannot attend. There are no exemptions.

Depending on what the document it, it could be forgery.

Sounds like a gift to me...... Maybe you should make up/apologize or whatever to make things right.

Gather all your evidence and file a motion to restrict his visitation. You should ask for him to have supervised and get some type of treatment.

The income of that person would not be considered.

This does seem a bit odd, because of your daughter's age. It would definitely need to be paired with other oddities to be "good evidence" for...

It depends on how the order is worded. You can always try, but a judge may not like it.