I don't know what's expensive or not, but when I was looking last year I found the prices a bit high. Of course, I am talking in terms of how much they have gone up. I admit for earning dollars Buenos Aires is incredibly cheap for rent. However, most people don't earn dollar so I assume the market is currently expensive, no? Also, is it the case that with commercial properties now being rented as housing, the tenant pays the commission and not the landlord?
I am glad I got out of the rental market finally after 10 years. Whether it's expensive or affordable, your sitution just shows what a stressful situation renting can be. The demands of your former landlord are crazy.