@Colosus01 said:
Is there any law covering EC members allowing them to withhold a vote on this particular matter?
The chairman can declare a motion invalid as this one should be, as it requires a Special Resolution Bylaw (see posts below). An SBR can only be passed at a General Meeting and even then it requires a 75 percent vote in favour of those attending.
But even if the vote were valid, you would need the support of at least one other owner to stop it. So why not ask that other owner to refuse to attend then the meeting will be inquorate?