Tex. Health and Safety Code § 221.012

(a) If the governing body of a sponsoring entity determines that it is in the public interest and to the benefit of the sponsoring entity's residents and the citizens of this state that a development corporation be created to promote and develop new, expanded, or improved health facilities to assist the maintenance of the public health and welfare, the governing body, by resolution stating that determination, may authorize and approve creation of a development corporation, and shall approve proposed articles of incorporation for the development corporation.

(b) No fewer than three residents of the sponsoring entity who are each at least 18 years of age may act as incorporators of the development corporation by signing and verifying the articles of incorporation and delivering the original and two copies of the articles of incorporation to the secretary of state.