Over the past decade, more retail investment professionals have transitioned away from a pure broker relationship to a more advisory role. This switch is potentially good for both sides, as it reduces the incentive to churn (i.e., excessively trade) an account simply to generate commissions, while also providing a more stable revenue for the advisor. See article here, Financial-Planning.com.
Dolvin, Steven D., "Broker vs. Advisor" (2013). All Chapters. 76.