broker

noun | \ ˈbrō-kər \ | bro·ker

1. : an agent who negotiates contracts of sale (as of real estate or securities) or other agreements (as insurance contracts or mortgages) between the parties for a fee or commission — compare dealer, finder

   Note: An insurance broker differs from an insurance agent in that a broker is usually considered an agent of the insured, even though he or she may receive a commission from an insurance company. A broker may sell the products of a number of insurers, and an insurer has no liability for a broker's wrongful actions. A securities broker often acts also as a dealer and so is often referred to as a broker-dealer.