In Berlin the stock exchange listed property companies own more than 20% of the flats, big corporations/large private investors own more than 20%, too, then there are smaller still very profit oriented companies, as well as smaller investors, basically 50-60% of all flats (and that amounts to more than 90% of all newly let out flats) are controlled by them, which means that to focus on small landlords is pretty irrelevant. Give me a specific city and specific ownership structure (which works well in some European countries in which plot information, company information and sometimes individual income information are online and open).

“Many” in small landlords means too few to have market price changing effects. Even small landlords do take the worth increases of their plots which are related to things outside their control i.e. state investments, network effects etc. even the small ones take in renters so that the renters finance their mortgages. So they are not really different, though they don’t have the economic power to influence politics as much and abuse the court systems as much.