40 Tex. Admin. Code §§ 819.121–819.136 § 819.127

(a) It is unlawful to discriminate based on race, color, disability, religion, sex, national origin, or familial status by inducing or attempting to induce for profit a person to sell or rent a dwelling by representations regarding the entry or prospective entry into the neighborhood of an individual or group of individuals. (b) Prohibited actions under this section include, but are not limited to: (1) engaging in conduct (including uninvited solicitations for listings) that conveys to a person that a neighborhood is undergoing or is about to undergo a change in the race, color, disability, religion, sex, national origin, or familial status of individuals residing in it or in order to encourage the person to offer a dwelling for sale or rent; and (2) encouraging a person to sell or rent a dwelling through assertions that the entry or prospective entry of individuals of a particular race, color, disability, religion, sex, national origin, or familial status can or will result in undesirable consequences for the project, neighborhood, or community, such as a lowering of property values, an increase in criminal or antisocial behavior, or a decline in the quality of schools or other services or facilities.