Slumlord (noun)

1. A landlord, especially a wealthy one, who owns and manages run-down and overcrowded properties in an urban area.
2. A landlord who neglects their properties and allows them to become dilapidated.

Origin:

from the word "slum" meaning "a run-down and overcrowded urban area" and "lord" meaning "a person who has control or power over something".

Examples:

1. The slumlord refused to make any repairs to the building.
2. The tenants organized against the slumlord's neglect of the properties.
3. The slumlord raised the rent despite the poor condition of the apartments.
4. The slumlord was notorious for exploiting low-income tenants.
5. The city held the slumlord responsible for numerous building code violations.