Which entity handles complaints regarding potential violations of license acts?

The correct entity that handles complaints regarding potential violations of license acts is the Department of Financial and Professional Regulation. This department is responsible for the regulation and oversight of various professions and occupations in Illinois, including real estate licensing. Its role includes investigating complaints, enforcing compliance with licensing laws, and taking disciplinary actions when necessary.

The other entities listed do not have the same authority. The National Association of Realtors, for instance, is a professional organization that advocates for real estate professionals but does not have the regulatory authority to handle licensing complaints. Local municipalities may have certain functions related to real estate, such as zoning and building permits, but they do not manage the licensing of real estate agents or handle complaints about licensing violations. Similarly, Real Estate Boards often serve more as membership organizations or advisory bodies, rather than as regulatory authorities with the power to investigate and enforce laws regarding licensing in the same way the Department does.