Sec. 8. As used in this chapter, "mortgage loan" means:
(1) a loan:
(A) secured by a mortgage on real estate that is improved by a dwelling intended for occupancy by at least one (1) and not more than four (4) families; and
(B) that includes:
(i) the note;
(ii) the mortgage; and
(iii) any other documents constituting the loan transaction; or
(2) a loan:
(A) secured by a mortgage on real estate that is improved by a combination home and business building; and
(B) that includes:
(i) the note;
(ii) the mortgage; and
(iii) any other documents constituting the loan transaction.