The Act says:
A member of a strata committee may, with the consent of the strata committee,
appoint an owner or company nominee of a corporation that is an owner who is
eligible to be a member to act in his or her place as a member at any meeting of the
strata committee.
The number of people voting doesn’t matter as long as a quorum has been achieved before the meeting. After that, I don’t know. What does “at any meeting” mean? I think it means that the committee can agree that the stand-in should be allowed at any future meeting that the elected member can’t attend.