What duty must licensees provide when offering real estate services to the public?

The correct choice is the disclosure of all known facts affecting property value, which is a fundamental duty owed by real estate licensees to clients and customers. This duty, often referred to as the duty of disclosure, requires licensees to share any material facts or defects about a property that could influence a buyer's decision. This is not only a matter of ethical practice but also a legal obligation designed to promote transparency in real estate transactions.

By disclosing known facts that could impact property value, such as structural issues or environmental hazards, licensees help ensure that clients are making informed decisions. This practice fosters trust and professionalism in the real estate industry and protects both buyers and sellers from potentially detrimental surprises post-transaction.

The other choices do not encapsulate a core duty relevant to all real estate transactions. Advertising without limitations could lead to misrepresentation and violate advertising standards. Assuming all financial responsibilities is not a standard expectation placed on licensees, and offering deferred payment plans is not an inherent duty of real estate professionals. Thus, the duty to disclose material facts is the most critical responsibility when providing real estate services to the public.