In short: A broker has more experience, and more responsibility when it comes to New York Real Estate.
A broker is required to have at least a couple of years and variety of Real Estate experiences under their belt, and must take an additional 45-hour Real Estate broker course as approved by the Secretary of State. On top of that, they must pass a qualifying exam before they can apply for a Broker License (and update that LinkedIn page!).
For a more in-depth look at becoming a broker, check out this article in our Aceable Career Center.