A beneficiary who is acting with knowledge of the material facts and whose action is not improperly induced by the conduct of a trustee may, by written instrument delivered to a trustee, relieve a trustee from liabilities that otherwise would be imposed upon him. The instrument shall not be effective if it limits prospectively and in general terms a trustee's liability for breach of the duty of loyalty to a beneficiary, or for breach of trust in bad faith.
La. R.S. § 9:2207