Basically, "use algorithms and machine learning to snatch up every single house that could possibly be rented by normal humans."
I've long had a suspicion based on my reconnaissance of a couple local markets that the REITs were snatching up everything vaguely normal thereby driving up prices. Gives you an advantage when you're looking at weird houses and a severe disadvantage when all you want is a place you aren't paying rent on.
The rentiers are winning.