(a) The commissioners court shall hold a public hearing at which an owner of an interest in property that abuts a proposed improvement may contest:
(1) the amount of the assessment; or
(2) the accuracy, sufficiency, or validity of a proceeding or determination of the commissioners court related to the improvement or assessment.
(b) After correcting a deficiency or error in its proceeding or determinations, the commissioners court by order may make an assessment against property that abuts the improvement.