Property Management
Property owner Sims can be present property managers, living among their tenants, or they can live in a separate residence while generating income from several property investments. Watch out – if property owners don’t keep their Unit Ratings high, they could face a Tenant Revolt.
"Tenant Revolt" sounds cool though. Multi-family housing is cool too.
I found a YouTube link in your post. Here are links to the same video on alternative frontends that protect your privacy: