Conforming & Non-Conforming Mortgages A conforming mortgage refers to a mortgage that is drawn up within the guidelines specified by the lending institutions referred to as Fannie Mae and Freddie Mac. The most common reason for a mortgage to be referred to as non-conforming is because the total amount of the mortgage exceeds the lending limits or total loan amount allowed. This type of non-conforming loan is often referred to as a Jumbo mortgage. Quelle "Conforming & Non-Conforming Mortgages" : General Main page for "Conforming & Non-Conforming Mortgages"