Tex. Health and Safety Code § 248A.0012

(a) A person is a controlling person if the person has the ability, acting alone or in concert with others, to directly or indirectly influence, direct, or cause the direction of the management of, expenditure of money for, or policies of a center or other person.

(b) For purposes of this chapter, "controlling person" includes:

(1) a management company, landlord, or other business entity that operates or contracts with another person for the operation of a center;

(2) any person who is a controlling person of a management company or other business entity that operates a center or that contracts with another person for the operation of a center; and

(3) any other person who, because of a personal, familial, or other relationship with the owner, manager, landlord, tenant, or provider of a center, is in a position of actual control of or authority with respect to the center, regardless of whether the person is formally named as an owner, manager, director, officer, provider, consultant, contractor, or employee of the center.

(c) Notwithstanding any other provision of this section, for purposes of this chapter, a controlling person of a center or of a management company or other business entity described by Subsection (b)(1) that is a publicly traded corporation or is controlled by a publicly traded corporation means an officer or director of the corporation. The term does not include a shareholder or lender of the publicly traded corporation.

(d) A controlling person described by Subsection (b)(3) does not include a person, including an employee, lender, secured creditor, or landlord, who does not exercise any formal or actual influence or control over the operation of a center.

(e) The executive commissioner may adopt rules that define the ownership interests and other relationships that qualify a person as a controlling person under this section.