We need a immigration lawyer

Hi,
My wife wants to continue and boots an existing activity and company which aims to bring Thai students and tourist groups to NZ.
Some elements about us :

# My wife : 36 Thai. Principal applicant (Speaking English)
# Myself : 67 French, owner at ZQN from 1994. (Speaking English) My daughter Emilie has lived in Queenstown for 22 years and is a Kiwi citizen.
# Married at Queenstown on the October 10, 2020.
# Children :
- 19 years old girl Thai who wants to go to university in NZ (Speaking English)
- 16 years old boy Thai who wants to continue his study in NZ
- 14 years old girl Thai who wants to continue his study in NZ (Speaking English)

Thank you for your advice and good afternoon.