Great analysis. There’s many issues, so I will confine myself to two.
1) Under the Australian Consumer Law, the ACCC is able to obtain compensation orders for consumers and fine company directors personally if they are ‘knowingly concerned’ in breaches of the consumer law. A good recent example is the car rental company, Australian 4WD – this is the ACCC Media Release https://www.accc.gov.au/media-release/penalties-of-1223m-against-australian-4wd-hire-and-ex-directors-vitali-roesch-and-maryna-kosukhina
Why isn’t this made to apply to consumers who purchase apartments under state Fair Trading Laws?
2) The NSW Government should definitely be providing financial assistance to the OC of Mascot Towers to pursue the owner and developer of the adjoining property through the Courts. It should be a no strings attached undertaking to contribute towards the legal fees, not a loan.