(a) A mortgage lender shall require a borrower to provide the mortgage lender with independent evidence of the commercial purpose of the loan where the loan is:
(1) Secured, in whole or in part, by any interest in a dwelling or residential real estate in Maryland; and
(2) In excess of $75,000.
(b) Other than the requirements of subsection (a) of this section, a mortgage lender is not required to make an independent investigation to obtain independent evidence of the commercial purpose.