Good morning! First of all, thanks for requesting my advice. Let me see if there is anything I can do for you.
You are living in "condo hell." I have been there, and it is why I would never, ever live in a condo again, even if they gave me one for free. Condos are like communism: you are at the mercy of a government that doesn't represent you and couldn't care less about your needs.
When anything gets put up to a vote, you are at the mercy of the majority. And that's if you're lucky. Many times, the majority is unhappy with the board, and can't do anything about it anyway.
Let me give you my sincere best advice -- because you cannot win a fight with a condo board -- and that advice is, let them put in the access panel, demand that it be made attractive and inconspicious, put your condo up for sale, and buy yourself a house.
I'm serious. I hear complaints from condo owners all day long. If you're lucky enough to live in a good one, fine. But many of them are just houses of horror. Sell and move to a nice house of your own.
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Note: this response is legal education, not legal advice. No attorney-client relationship is created.