Ahmad,The big issue here is that the people living in these areas, most of them are lower to middle income earners. As interest rates rise; they just cant't afford to keep up with the higher repayments. That's why repossesion rate is very high in these areas.
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The repossesions were largely due to dodgy lending with Lo or No doc loans given to people who couldn't get a normal loan.
The majority of those loans would have defaulted by now.
Cheers