I am just pulling rabbits out of the hat for the time being because I am new to this issue as well.
Now let me tell you why I have differing opinion from Cherroy and yourself. Why would I side with management.
Before that... need to clarify and you are right, sorry for the sloppy explanation there.
Proprietor in the Act is the parcel owner.
As for votes, there is two types, show of hand and by poll. (section 17(1) of Schedule 2 SMA)
Where there is an equality of votes, whether show of hands or by poll, the Chairman is entitled to cast a vote (section 17(5) of Schedule 2 SMA).
Now back to the topic...
As we all know, before the AGM/EGM commence, the agenda will be published in notice board or circulated to proprietors. Attached together with the agenda is a proxy form.
Now when you look into the proxy form, it will most likely address all the agendas except for appointment of new committee members, reason being at that early point in stage it is not possible to know who has been nominated as a committee member. Hence, that subject matter is discussed during the AGM itself.
For obvious reasons, the proxy derives his power from the proxy form. It will therefore be safe for me to say that the parameters of action of a proxy is subject to the content of the proxy form dictated by the Proprietor.
Besides, the committee members are something that is "personal" to proprietors and third parties (example where such powers are not accorded in a proxy form) should not be allowed to participate in such voting for fear that the voting process may be skewed or tempered with.
unfortunately, the Act doesn't elaborate further on proxy (i.e. voting of committee members), if the Act is silent, we will need to refer back to the proxy form. If the proxy form is silent as well, then your management is correct in disallowing your sister (as proxy) to vote.
I don't buy explanation. The act is used to protect the rights of the owner. The reason I don't buy the explanation is due to it is fair and the right of owner is not protected. Every act has plenty of loopholes and management used the loop holes to manipulate the condition. Then why we need the act?
In current technology, we can use whatapps/viber/ blar blar blar or even a courtesy phone call to update the condition. I believe the voting process should progress to be electronic voting. Seem the rights of owners should be protected. It is like backward management style to me. No e-vote never mind lah. Peoples comes also can not vote. Next time.... maybe management want to check IC leh. how do management who is owner who is not. Next time maybe check this and that..... Sounds a red herring for bias.