1. One broker, many lenders. Mortgage brokers can put together a variety of loan packages because they have access to a wide range of lenders, who operate on a wholesale basis, relying on the brokers to find customers. A myriad of lenders operate on this basis, and brokers can choose whichever program fits your needs.

2. Superior access. A wholesale lender works only through brokers. As a result, consumers don't have access to their special programs or rates. You need to work with a broker if you want access to wholesaler's unique loans.

3. Stretching that loan package. A broker doesn't have the constraints that you might find at a bank or credit union in terms of structuring a deal. They can stretch or limit their fees and the terms on the loan. More flexibility on the part of the originator means a more flexible loan for you.

4. The ability to be disloyal. A mortgage broker doesn't need to be loyal to a vendor. If you're unhappy with a particular lender or don't like the package it puts together, the broker has the freedom to look elsewhere. Wholesale lenders understand this, and they do what they can to keep the mortgage broker happy.

5. Third party flexibility. The same flexibility brokers have with loans also applies to third-party vendors, like appraisers and title companies. Brokers can shop around until they find the best prices with the best quality work-and they can move very quickly.