I assume the NSW legislation has a similar provision
In NSW would go for orders under Section 232 (2) while keeping a watchful eye on Section 237:
232 Orders to settle disputes or rectify complaints
(2) Failure to exercise a function
For the purposes of this section, an owners corporation, strata committee or building management committee is taken not to have exercised a function if—
(a) it decides not to exercise the function, or
(b) application is made to it to exercise the function and it fails for 2 months after the making of the application to exercise the function in accordance with the application or to inform the applicant that it has decided not to exercise the function in accordance with the application.
237 Orders for appointment of strata managing agent
(1) Order appointing or requiring the appointment of strata managing agent to exercise functions of owners corporation
The Tribunal may, on its own motion or on application, make an order appointing a person as a strata managing agent or requiring an owners corporation to appoint a person as a strata managing agent—
(a) to exercise all the functions of an owners corporation, or
(b) to exercise specified functions of an owners corporation, or
(c) to exercise all the functions other than specified functions of an owners corporation.
(2) Order may confer other functions on strata managing agent
The Tribunal may also, when making an order under this section, order that the strata managing agent is to have and may exercise—
(a) all the functions of the chairperson, secretary, treasurer or strata committee of the owners corporation, or
(b) specified functions of the chairperson, secretary, treasurer or strata committee of the owners corporation, or
(c) all the functions of the chairperson, secretary, treasurer or strata committee of the owners corporation other than specified functions.
(3) Circumstances in which order may be made The Tribunal may make an order only if satisfied that—
(a) the management of a strata scheme the subject of an application for an order under this Act or an appeal to the Tribunal is not functioning or is not functioning satisfactorily, or
(b) an owners corporation has failed to comply with a requirement imposed on the owners corporation by an order made under this Act, or
(c) an owners corporation has failed to perform one or more of its duties…
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