In a lot of European countries, small private landlords are relatively rare and apartments are owned and let out by corporations that own (and in many cases build) entire developments, like Deutsche Wohnung in Berlin. Given that continental Europe typically has a more stringent regulatory environment than the Anglo-American world, this does not end up with the sort of predatory monopolies one sees in the US where private equity have cornered regional markets, and the landlord companies have support desks and maintenance contractors that can be more responsive and professional than your typical small landlord.