The requirement is almost certainly for a real estate agent licensed by the state, not a Realtor®, which is a registered trademark of a particular trade association for it's members.
Yes, you are absolutely right, and I'm aware of the trademarking of the Realtor name - that's an interesting story in its own right, and a very interesting approach to regulatory capture. I was just looking for statistics to find out how many people are licensed real estate professionals but not Realtors, but I couldn't find the number -- I'm betting not many. Since we are picking nits -- many states have a different licenses -- agents vs. brokers -- but both can be Realtors. Here's a good link for people who aren't in the know: https://www.frameworkhomeownership.org/blog/broker-vs-agent?...