Which of the following is not true regarding a broker's advertising practices?

The correct answer indicates that brokers cannot represent multiple clients without consent. In real estate practice, brokers have a fiduciary duty to their clients, which includes the necessity of disclosing relationships and obtaining consent when representing multiple clients in situations where conflicts of interest may arise. This requirement is in place to ensure transparency and to protect the clients' interests.

Advertising practices are heavily regulated to maintain professional standards and ethical conduct in real estate transactions. The options regarding advertising being truthful and not misleading, brokers having to disclose all their licenses, and the ability to advertise properties as a private party are aligned with industry regulations that promote honesty and accountability. Therefore, the assertion that brokers can represent multiple clients without consent clearly stands out as inaccurate, reinforcing the importance of ethical practices in real estate.