Texas Finance Code - FIN § 199.003. Succession of Trust Powers

(a) If, at the time of a merger, reorganization, conversion, sale of substantially all of its assets under Chapter 182 or 187 or other applicable law, or sale of substantially all of its trust accounts and related activities at a separate branch or trust office, a reorganizing or selling state trust company is acting as trustee, guardian, executor, or administrator, or in another fiduciary capacity, a successor or purchasing trust institution with sufficient fiduciary authority may continue the office, trust, or fiduciary relationship:

(b) The successor or purchasing trust institution may perform all the duties and exercise all the powers connected with or incidental to the fiduciary relationship in the same manner as if the successor or purchasing trust institution had been originally designated as the fiduciary.