Tex. Prop. Code § 114.002
A successor trustee is liable for a breach of trust of a predecessor only if he knows or should know of a situation constituting a breach of trust committed by the predecessor and the successor trustee:
Amended by Acts 1983, 68th Leg., p. 3332, ch. 567, art. 2, Sec. 2, eff. Jan. 1, 1984.