When it comes to real estate salespeople there's a lot of movement. Like the rest of us, real estate licensees are a mobile group both in terms of communities and jobs.
Salespeople move and when they relocate they routinely work for a new brokers.
And even when they stay in the same community it's not unusual for a salesperson to switch brokerages from time to time. Imagine that Agent Brown decides to leave MainStreet Realty. Once Brown changes brokers then advertising, business cards, and related items will be immediately revised. Agent Brown has a web site. The catch is that Agent Brown, being a good online marketer, has listed her site with various sites and search engines online.