I have heard this referred to as the "financialization of housing" in articles I've read over the last few years. Google that term to find out more..
Basically more and more multinational corporations (structured as REITs and similar) have turned their eyes towards the housing market, buying up stock in major cities and wherever there is arbitrage opportunity...
And of course this means maximizing profits and minimizing costs, which is squeezing the average person harder and harder as rents go up more aggressively than before (which also drives up home prices etc)...
The idea of treating people's homes as "assets" to be bought and sold and optimized for profit is, personally speaking, horrendous..
But hey, capitalism, right?