Will foreclosing affect wife's credit score?

Dear all I would like to improve my housing situation in the city but due to the govs policies the market stays inflated. I wonder whether I could buy a condo/townhouse with an FHA minimal down payment. There are two options: --Market goes down: I can default and stay a few years rent free. Gov will not foreclose on me as 10% of the market is delinquent and are afraid of throwing people out of their houses when they hand out bonuses to wall streeters. --Market goes up: flip it. It might sound wrong but one has to fight gov/fed sham with same. There's one caveat if market goes down my credit rating will be abysmal. But if my wife's credit score is not affected--she won't appear in docs--she can buy a cheaper house when foreclosed. Does anyone know what happens in this case?