(a) A trustee who, intentionally or knowingly or with intent to defraud, directly or indirectly retains, uses, disburses, or otherwise diverts trust funds without first fully paying all current or past due obligations incurred by the trustee to the beneficiaries of the trust funds, has misapplied the trust funds.
(b) It is an affirmative defense to prosecution or other action brought under Subsection (a) that the trust funds not paid to the beneficiaries of the trust were used by the trustee to pay the trustee's actual expenses directly related to the construction or repair of the improvement or have been retained by the trustee, after notice to the beneficiary who has made a request for payment, as a result of the trustee's reasonable belief that the beneficiary is not entitled to such funds or have been retained as authorized or required by Chapter 53.
(c) It is also an affirmative defense to prosecution or other action brought under Subsection (a) that the trustee paid the beneficiaries all trust funds which they are entitled to receive no later than 30 days following written notice to the trustee of the filing of a criminal complaint or other notice of a pending criminal investigation.
(d) A trustee who commingles trust funds with other funds in the trustee's possession does not defeat a trust created by this chapter.