To clear up a few misconceptions that you have:
NCLEX is a national exam, it is not state specific.
And once you pass it, that result is valid for all 50 states plus the US territories. Provided that you keep a license somewhere, in most cases that exam would never need to be repeated. Only if you get out of nursing for ten years or more and do not keep a license up to date, then you may be required to write it again. But not in normal situations.
However, you will still need to go thru the licensing process called Licensing by Endorsement to which ever state that you want a license in. You will keep the original license provided that you continue to renew it, otherwise it will expire as of the date stipulated on the license.
Hope that this helps.