Texas Property Code - PROP § 112.085. Exceptions to Power of Distribution

(1) reduce, limit, or modify a beneficiary's current, vested right to:

(2) materially limit a trustee's fiduciary duty:

(3) decrease or indemnify against a trustee's liability;

(4) add a provision exonerating a trustee from liability for failure to exercise reasonable care, diligence, and prudence;

(5) eliminate a provision granting another person the right to remove or replace the authorized trustee exercising the distribution power under Section 112.072 or 112.073;  or

(6) reduce, limit, or modify in the second trust a perpetuities provision included in the first trust, unless expressly permitted by the terms of the first trust.