… what chance would the failed candidate have of getting it turned over at NCAT?
None. If it’s not illegal, what would the grounds be for having it overturned? It sounds like all the provisions of the proxy limitations were observed, and meticulously so. There are recently added provisions under the Act where you can ask a majority of owners at a general meeting to remove office-bearers from their positions or members from the committee. But unless you are prepared to launch a grass-roots campaign on a specific topic – such as a decision that you think is wrong and harms the building – you have buckley’s chance of getting that kind of support – especially when the proxies are harvested again.
The tribunal is not going to overturn an election unless there is a clear breach of the law and there isn’t, as far as I can tell. They might even admire the committee for its efficient use of its perfectly legal powers.