No, that's not the literal definition of "rent-seeking", not even close. I really wish this term had a different name because I see people on HN misusing it on a daily basis. "rent-seeking" is a specific term in economics that refers to entities colluding with the government to distort the market in their favor. The taxi medallion system is a classic example of rent-seeking. Owning property and leasing it out, whether it's land, vehicles, apartments, or machinery, is NOT rent-seeking.
> Be a part of the solution and build something. Do not be a part of the problem and become a landlord.
Would you prefer a world in which people are not allowed to rent apartments?