I can’t imagine any grounds on which a legal action like that might succeed, unless there was a corrupt process in awarding the contracts, you didn’t get the required two estimates for work or the votes weren’t counted properly.
In fact, an owner taking you to court for NOT doing the work would probably have a better chance of success. Just make sure your EC insurance covers legal action and you’ve got very little to worry about. I wonder where people who don’t have the money for essential maintenance find the cash to pay lawyers.
But, all joking aside, one of the few legal obligations imposed on Owners Corporations is that you have to maintain common property. That has been upheld time and again in the courts and your litigious neighbours should take note.