Handing yourself in voluntarily will at least show the court you are taking things seriously. Waiting until you get hauled in by law enforcement will give them a less favourable impression of you.
Once you are in custody, what happens next will depend on how they see you. If they see you as seriously wanting to get things concluded, you may be released on bail until the new hearing. If they see you as a flight risk or suspect you'll avoid the new hearing, they may keep you in custody to ensure you're there.
Depending on what the charge is, having an attorney may negate your need to be arrested.
The only way is by turning yourself in to law enforcement and facing and defending yourself against the charges against you.
There is no restriction on getting a marriage license. You may get arrested when applying for the license.
Unless the arrest warrant specifically states that the issuing agency will extradite then you can not be arrested for it.
yes, a warrant is a warrant.
No, they arresting officers do not have to have the warrant in their possession, only the knowledge that it exists.
A warrant is a judicial order for an arrest. If the warrant was still valid, the law enforcement officer has no choice but to make an arrest.
Yes.
Then you could be extradited to the county that issued the warrant.
Yes.
No
yes, you can be arrested in NC for a warrant that was issued by the New Jersey courts.