Tex. Spec. Dist. Code § 6903.308
(a) Bonds, including refunding bonds, authorized by this subchapter that are not payable wholly from ad valorem taxes may be additionally secured by a deed of trust lien on physical property of the district and all franchises, easements, water rights and appropriation permits, leases, contracts, and all rights appurtenant to the property, vesting in the trustee power to:
(b) The deed of trust may:
(c) A purchaser under a sale under the deed of trust:
Added by Acts 2007, 80th Leg., R.S., Ch. 920 (H.B. 3166), Sec. 1.06, eff. April 1, 2009.