> Dismissing depreciation is a serious mistake.
...
> The generally accepted rule is buildings have a 30 year life.
I think you are saying "there are substantial costs" again.
It only works as an argument about rising costs if backed up by "and the real costs to the landlord caused by depreciation have actually risen".
Do you have anything to back that up?
I think most people take the view that landlords have generally benefitted, until recently, from steadily rising property prices, and this nearly always greatly outweighs depreciation over 30 years. I.e. the cost of property doubles more often than every 30 years, so you can use the bonanza to buy replacement buildings which offsets the cost of old buildings being taken down.
And that doesn't even consider cost of the land, which does not suffer depreciation even if a building has to be replaced, and is often the majority of the cost of purchase.
> There's nothing about property management that suggests it is immune from these forces.
But there is a very significant obstacle to these forces acting fluidly according to the ebb and flow of commercial forces! I would happily be a landlord (until recently and maybe even then) on the basis of commercial thinking, but the avenue is not open to me because I don't have access to capital. Capital is around, but it will tend to be allocated first to an entity with an existing portfolio.
Also, in the town where I live, even if I had a few million, I would struggle to become a landlord of commercial property larger than a tiny corner shop, because very few units are for sale. When one comes up, which is not often, there's a secret bidding war because pent up demand exists as does the money behind it, and buyers simply cannot find something. This is despite a very large number of empty units, with owners who seem to be happy keeping them empty (I know several companies that have tried renting be turned away on various grounds, sometimes "we are not interested in renting it at all, we have plans for it in 10 years", others "we want personal rent guarantees from all the directors as well as a large deposit".) Heck, even renting is subject to bidding wars and personal interviews to decide which company should be allowed to rent among several candidates (I've been involved in this twice as a business tenant, and several times for residential, so I'm not speculating.)