1. You will be issued with a long-term business (work) visa, for an initial period of nine months, to enter New Zealand to establish or purchase your business. Upon satisfying the visa officer of this, you will then be issued a further work permit for up to a maximum period of 3 years, allowing you to continue establishing and running your business.
2. Permanent residence is applied for under the Entrepreneur Class once the business has been successfully established in New Zealand for at least 2 years and meets the prevailing criteria.
The success of the first stage (LTBV) largely depends on the quality of your business plan, so make sure that you seek professional advice from a Migration Consultant on this aspect.