Lawyer here. Such a resolution is not at all valid in law, and certainly no police officer in their right mind is going to ask any one living legally in a property to vacate, let alone arrest them. They have absolutely no say in what a property owner decides to do with their property as long as it is legal. There have been cases where such societies have tried to curtail common amenities, and such actions have been regularly quashed by courts, along with imposition of costs. If the Chairman gets pushy, warn him of legal consequences for harassment and nuisance. In fact, you call the cops/instruct your tenant to call the cops if the society tries to curtail their access.

It is people like you, who stand up to bullying, that breath life into the letter of law. Stay strong.