Uh… the title of the article is slightly misleading….
The home was purchased with 4 people, each earning about $15k, who purchased a $700k home, not just 1 person earning $15k.

See how the media likes to distort the truth 🙂

Plus, unlike most people, I’m sure those folks paid $0 taxes.
….Still, $60k household income with a $700k home is ridiculous.