Reading the act your motion would still have failed due to lack of a Quorum
12 Quorum
A motion submitted at a general meeting of an owners
corporation must not be considered, and an election must not be
held, unless there is a quorum present to consider and vote on
the motion or on the election.
There is a quorum for considering and voting on such a motion
or at such an election only if
(a) at least one-quarter of the number of persons entitled to vote on the motion or at the election is present, either personally or by duly appointed proxy, or
(b) at least one-quarter of the aggregate unit entitlement of the strata scheme is represented by the persons who are present and entitled to vote on the motion or at the election, either personally or by duly appointed proxy.
So with 9 owners you require 2.11 owners for quorum. I suspect you would require 3 to obtain the quorum. But as you require 75% to pass you would have required all 3 owners to vote in your favor.
Seems you can vote without a meeting
21 General meetings valid if attended only by chairperson
A general meeting of an owners corporation is, subject to the provisions of this Schedule relating to the quorum of the owners corporation, validly held even though the only person present at the meeting is the chairperson of the owners corporation.
Seems to me you organize a GM on a particular day and date but tell people not to attend but vote by proxy (postal vote) ensuring proxies are received by chairman on this date. Chairman then counts the proxies and declares the result. I’m sure Jimmy will tell me if I’ve got it wrong.