Subprime mortgages were given to people with poor credit scores. Alt-A loans, which rank between subprime and prime, were made to borrowers with better credit who provided no proof of income, bought property for investment or took out ... 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 .