Sec. 3. (a) A savings bank may make loans secured by mortgages on real property or leasehold, as the federal housing administrator insures or makes a commitment to insure, and to obtain such insurance.
(b) An Indiana law:
(1) prescribing the nature, amount, or form of security;
(2) requiring security upon which loans or advances of credit may be made;
(3) prescribing or limiting interest rates upon loans or advances of credit; or
(4) prescribing or limiting the period for which loans or advances of credit may be made;
does not apply to loans made under this section.