Final answer:
When a brokerage office changes its business address, the broker must inform the DBPR in writing within 10 days of moving.
Step-by-step explanation:
When a brokerage office changes its business address, the broker must take the action of b. Within 10 days of moving, inform the DBPR (Department of Business and Professional Regulation) in writing of the change in business address.
This notification is important for maintaining accurate records and ensuring that any necessary updates can be made regarding the brokerage office's licensing and registration.
By notifying the DBPR promptly, the broker can avoid any potential penalties or legal issues related to operating the brokerage office from an unregistered or incorrect address.