I cant help help but jump in and tell you that your questions is quite ignorant and ridiculous, in fact.
Why would a mortgage broker ask about financing? Well, there are literally thousands of lenders, with all different guidelines, that change daily nowadays. Its quite impossible to be an absolute expert on all products, in all states, everywhere, all the time.
Its EXTREMELY difficult in fact, just mastering all FHA programs for instance, there are pages pages of rules and regs, that are constantly being changed, and there are about a million different scenarios to deal with, no 2 loans are ever the same.
Going forward I will I expect since you're a 'real estate pro' you will never have a question regarding 'real estate'.
US Bank is doing jumbo loans though to answer your question
Realtor, GRI, CSSN
John Hall & Associates