What item must be included on ALL real estate advertising in Maryland?

In Maryland, real estate advertising must include the broker's or company's name to ensure transparency and accountability in real estate transactions. This requirement helps consumers identify who is responsible for the advertisement and encourages ethical practices. Having the broker's or company's name prominently displayed serves as a safeguard for the public, as it allows potential clients to verify licensing and disciplinary records with the Maryland Real Estate Commission.

The other elements provided in the options, such as the license number or phone number, while potentially useful for consumers, are not legally mandated to be included in all forms of advertising. The focus is primarily on the broker's or company's name, which is critical for establishing legitimacy in the market. Therefore, including the broker's or company's name fulfills the legal requirement set forth by Maryland regulations for real estate advertising.