A power vested in three or more trustees may be exercised by a majority of the trustees, unless the trust instrument provides otherwise. A trustee who has not joined in exercising a power shall not be liable to the beneficiaries or to others for the consequences of that exercise, nor shall a dissenting trustee be liable for the consequences of an act in which he joins at the direction of the majority of trustees, if he expresses his dissent in writing to his co-trustees at or before the time of the joinder. Nothing in this section shall excuse a co-trustee from liability for inactivity in the administration of the trust nor for failure to attempt to prevent a breach of trust.
La. R.S. § 9:2114