“They were much more susceptible to getting into loans that they didn’t understand,” said John Gieseker , a San Bruno broker with Prudential California Realty . “Immigrants have seen it as very important to own your own because it’s a greater level of security, so they would push harder to buy something.” There is no upper age limit set by HUD for the borrower. Nor is there a certain income level that the borrower must achieve in order to buy a home at a certain price. And although income is certainly an important factor, it is simply one of the several determining factors which are used by the HUD to find whether the borrower will be able to repay the mortgage.