Mortgage professionals go by many different names. The most common is loan officer.A mortgage broker is the person who holds the actual license to lend in the licensed states. Loan officers are licensed to originate loans under the mortgage brokers license
Often time your loan officer is also your loan processor, in other words the person who will collect all your documents and make sure all needed conditions are met for a timely funding.
The lender is the company that actually provides the funds to close your loan. This is different than the mortgage broker and loan officer. The lender is responsible for underwriting the loan and making sure that all of your paperwork adds up. They will then, most often, package the loan with several other loans, and sell them in the secondary market.
A job title for a mortgage broker can be loan originator. The loan originator is the person who originates or obtains the financing for your mortgage and in most states has to be licensed.
++