"Taken Over by Youths for Partying"

From News10 (also video):

As foreclosures continue on the upswing in California, there's also been an increase in people taking advantage of those empty houses...Manteca police discovered a large empty home in a newer neighborhood that had been taken over by youths for partying. Officers have found squatters in another home that was left empty by the owners.

From KCRA:

One foreclosed property in north Stockton has been on the market for 208 days, it's dropped in price from $304,000 to $233,000, a $71,000 price difference. The foreclosed homes often bear the telltale signs of dried lawns or boarded-up windows. The average foreclosure takes about 150 days to sell.

Also from KCRA: