What action must be taken when a broker offers a promotion at an open house event?

When a broker offers a promotion at an open house event, it is essential to disclose the terms to all parties. This action ensures transparency and fairness, allowing all potential buyers to be aware of the promotion being offered. Transparency is vital in real estate transactions to maintain trust and comply with regulations that protect consumers. By providing all attendees with the same information regarding the promotion, the broker upholds ethical standards and promotes an open and competitive environment in the housing market. This practice avoids any potential misunderstandings or claims of favoritism among clients or attendees, reinforcing the integrity of the broker and the event.