Yes, I know the cost of housing is insane and something should be done about it, but introducing some level of market efficiency isn't necessarily a bad thing.
I can't speak for the US but in the UK a huge majority of private landlords are individuals, many of who want to earn a living from renting out two or three homes max. I rent an office from such a person, his sense of entitlement is off the scales.
Some of these landlords had the homes fall into their laps via inheritance, some are simply playing an arbitrage game, very few are actually doing anything economically productive.
Anything that threatens this method of exploitation has to be positive.
Private landlords are a gamble. They are better on the average, but the variance is also higher. Because most private landlords only have a handful of properties, it's effectively impossible to know in advance what they will be like if something goes wrong.
My Son lives in a "mega landlord" unit in Saskatoon (Canada) and it is well maintained and his rental fee is very reasonable.
My Son-in-law lives in a "mega landlord" unit in New Jersey (USA) and it is also in excellent condition.
I personally rented from a private individual in Connecticut for several years and it was a slumhouse.
Landlord was never around, no one to call when things didnt work. we actually had to fix the heating system in Jan because we were freezing cold and the owner was once again MIA.
How many "slumlords" are in the marketplace today?
people illegally renting "rooming houses", illegal basement units, etc.
Perhaps JPM entering the realestate rental business might put a "floor" on the low quality rental units?
Lastly, what makes buying property and renting it out illegal? If you owned a house would you like renting it out to be illegal?
https://comptroller.nyc.gov/reports/bringing-basement-apartm...
Imagine if it were illegal to invest in farms, or trucking companies.
Without such restrictions, JP Morgan buying up thousands of units does little to both rents and unit values in the long-run.