Only when you and any real estate agent have a written agreement can they be your Buyer's Broker.
Agent and broker (with a little "b") can be used interchangeably. The agent/broker is performing real estate related activities on behalf of their Broker (with a big "B"). The (designated) Broker is the primary licensee and holds the licenses of all the agents that are working for the "Brokerage" (company/organization).
Agents can achieve the Broker designation(indicating a higher level of education and understanding of license law), but there is only one Designated Broker per brokerage, therefore that agent is referred to as an Associate Broker as long as they associate with an established brokerage.
Clear as mud, right?
Keep in mind, the Realtor designation is also special, and requires an agent and Broker to be members of the local, state and national board of Realtors. The Boards set the standards for professionalism and ethics and enforces them within our industry. All Realtors are agents, but not all agents are Realtors.
Hope that helps!
Better Homes & Gardens Real Estate Metro Brokers
Likely the same real estate professional... different terminology.
Although, there are agents (often brokers) who work exclusively with buyers and have a contractual relationship with their buyers. They don't list properties. I think it would be most accurate to call that real estate professional a buyer broker.
A buyer's agent could be an agent acting on behalf of a buyer in a transaction, but also lists properties, etc.
I hope I didn't confuse the matter!
Associate Broker, Massachusetts and New York
Berkshire Property Agents
12 Railroad Street
Great Barrington, Massachusetts 01230
KW Realty Integrity NW
Licensed in MN
You are right they are the same. The only difference could be the amount of training for licensing in some cases. Some states have agents and brokers and others just have brokers. It appears that your question is about who represents you as a buyer and an agent or a broker can provide that service. Some are exclusive to representing buyers. This usually requires an agency agreement, but not in all cases. It is important to know talk to the agent / broker you decide to work with and discuss agency relationship prior to any services. Hope this helps.
All the best,