Jumbo mortgage rates have been very high; some times up to 2% higher than conforming rates ( loans less than 417K).  Now you can get mortgage rates as good as conforming rates– with a catch.  The catch is you have to have a relationship with the lender.  You have to have a good chunk of money in one of their savings, IRAs, etc. This  required account amount usually is about 15% of the amount of the mortgage.  I am not a lender, but if you are interested in finding more about this special offering, I can refer you to a Long Mortgage consultant who can go into all the intricate details.