I wonder, though, if individual owners can claim a share of depreciation since, I think, if the OC makes any income (from the rental of common property or suchlike) that is supposed to be apportioned back to the individual owners as taxable income.
This was the case a few years ago and I haven't heard anywhere that it has changed so that might be a way of offsetting taxes.
I hasten to add, I haven't heard of any building that actually does this but if your block, say, rents roof space to telecom towers, owners may be up for a tax bill.
And when you think about it, claiming depreciation could open up a whole can of taxation worms. be careful what you wish for …