Which action is permissible for a broker in a buyer's agency relationship?

In a buyer's agency relationship, a broker is tasked with representing the interests of the buyer, which includes providing valuable advice and support during the home-buying process. Advising the buyer on market trends falls within the broker's responsibilities, as it helps the buyer make informed decisions about their purchase. Understanding market dynamics, such as pricing trends and availability of properties, is crucial for buyers, and the broker's expertise in this area adds significant value to the relationship.

The other options involve actions that could conflict with the broker's duty to the buyer. Guiding negotiations for the seller would undermine the broker's fiduciary duty to the buyer, as the broker's allegiance should solely be to the buyer in this relationship. Providing legal guidance is also outside the broker's role, as brokers are not licensed to give legal advice. Lastly, representing the seller simultaneously would create a conflict of interest, as the broker cannot effectively advocate for both parties at the same time without compromising their loyalty to the buyer. Thus, the only permissible action aligned with the broker's role in a buyer's agency relationship is advising the buyer on market trends.