Sec. 53. (a) A defense to a foreclosure action may not be based on any of the following:
(1) Any irregularity in the proceedings making, ordering, or directing the assessment.
(2) The propriety or expediency of any improvement.
(b) A property owner may not raise any defense to a foreclosure action if the owner has done the following:
(1) Exercised the option to pay the owner's assessment in installments.
(2) Signed a waiver.