Fire safety risk for shelving? Really? Why is it not a risk for the shelves already in place? The issue I can see is who owns the shelves. If someone moves out, can they take their shelves with them – and what about the lot owner who already has shelves?
Maybe the OC needs to buy the shelves and call them a “fixture” and you need a by-law to prevent some future owner from removing the shelves. And maybe the OC needs to pay a nominal amount to “buy” the shelves that are already in place so that everything is consistent.
The SM doesn’t get to decide this unless you’re doing something that contradicts the law. Even if your insurance company decides to up your insurance premium because you now have shelves, the owners can still decide to proceed.