Are there any landlords that have 250 or more rental properties?

[Logan Caudill]

First and foremost, hello everyone! New to the forum. I'm 20 years old officially today, and have been thinking heavily about renting out properties for the last two years. My question is are there landlords that own 250-500 or even more properties, or who earn $1,000,000 or more a year through their properties? I understand at this point you'd need a property management company or know a lot of handy men in a lot of places, it's more out of curiousity. I understand it would take a lot of work to get there, but I hope I would be able to get there eventually! Thanks to anyone who responds!