Landlord

You own an apartment building. Each month, the people who live there send you their rent checks. You still own the place...legally, it's your property. But you let them live there for a fee.

You're a landlord.

Typically, the people who live there have a lease. It's a document that lays out what they can and can't do with the property, and how long they can live there (before the lease gets renewed). It might also limit how much you can raise rent over a period of time.

So, despite the "lord" part of "landlord," the distinction doesn't give full feudal control over your domain. You can't burn your renters at the stake for witchcraft or demand that they till your barley fields. But you get those rent checks every month. And that beats the crap out of having a real job.