You should know that the super jumbo mortgage is an example of the residential mortgage just like the home equity secured loans whose limit is above $650000. As far as the super jumbo mortgages are concerned, they are made available when the loan amount is found to be over the jumbo limit which is around $5000000. Though, the government has never selected any organization like that in case of the jumbo mortgage. It simply lies on the internal investment criterion of the bank or the lender. The government has to do not anything with them.