Hello po pinoy kiwi, ask k lang po, magapply po mother k as tourist visa good for 6 months. If ever, after 6 months tapos magexit, ilang months or year bgo cya mkabalik ng NZ or allow to reapply again. I mean ung waiting time after mkbalik as a tourist visa. Not sure if mbgyan ng multiple entry visa. Thanks po in advance.
NZ has a 9/18 month rule for visitors - they can only stay for 9 months in an 18 month period. Medyo complicated siya to compute so it's easier to just test yung intended travel dates to see if the plan works. There are also other visa categories that allow more time in NZ. Dependends on your mom's situation.