If you wish to join your resident/citizen children in New Zealand, then Parent Resident Visa is the visa option that you should apply for. For this Visa, you have to first submit an expression of interest (EOI) to the immigration authorities. Parent Resident Visa is a two-tiered visa. That means in order to be eligible to apply you must satisfy either of the criterion mentioned in the tiers. EOI is the document that you need to submit in order to explain how you would be meeting the conditions as set by the immigration authorities. If your EOI is satisfactory then you will be invited to apply for this visa.
With this visa, you can:
Live, work and study in New Zealand.
Include your partner in your residence application.
Please note that the number of visas available under this arrangement is fairly limited. There is a quota system which governs the grant of visa as far as parent resident visa NZ is concerned. Please be sure that you apply on time and you apply with due compliance to rules and laws. Failure to do so might result in rejection of your visa application.
Also, note that in this visa grandparents and legal guardians may be able to apply for residence under this category. If you have any dependent children, you’re not eligible for this visa.
As with any quota system visa, it is advised that you seek the services of a professional immigration adviser. The scope of error in the application is almost nil here as there are many people in the queue for the same. A licensed immigration adviser will be the person who can really help you in applying for this visa properly. These professionals are trained to handle such applications and can even help you in case of objections and rejections if any that are put by the immigration authorities of the country.