The trend in Florida is for Realtors to be Transaction Brokers. This means that they are to remain neutral in all transactions and not advocate for either the buyer or the seller. This means they do not owe any loyalty or obedience to either party. They must be honest, fair and account for any money that goes with the transaction and they must present all offers in a timely manner and disclose any material facts about the transaction. That's as far as it goes, though. So if the Realtor you are working with is not working with you as a Buyer's agent, then their job is to get the transaction done (not a bad goal, mind you) but not to protect you, the buyer. A Transaction Broker is not obligated to find comparable properties for you to help you to determine a reasonable offer on a property. They are only obligated to submit your offer. A buyer's agent helps you to make sure that your offer is appropriate for the current value of comparable homes in the neighborhood. A Transaction Broker is not obligated to tell you anything about a property that is not a material fact. A Buyer's Agent looks out only for your best interests and therefore will point out things about a property that might be a problem for you.

So, when buying a home, make sure you are working with a Buyer's Agent in order to have someone exlusively on YOUR side in the transaction. It costs you nothing to have the representation of a Buyer's Agent. Transaction Brokers and Buyer's Agents both get paid by the seller so why not have someone working for YOU instead of just for the transaction?
In order for a Realtor to act as a Buyer's Agent, they must give you a disclosure that states that they are acting as a Buyer's Agent. If you do not get that disclosure, you are not getting the full representation and advocacy that you can have by using a Buyer's Agent.