Savings banks, banks, banking institutions, trust companies, building and loan associations, savings and loan associations, mortgage companies and insurance companies organized under any general or special law of this State, all boards, commissions and departments of the State Government and of the various counties and municipalities thereof, and executors, administrators, trustees, guardians and other fiduciaries are authorized:
Such institutions may, subject to such regulations as the commissioner finds necessary and proper, invest to an amount not exceeding 85% per annum of the purchase price or, in the case of a refinancing, the appraised value of certificates of stock or other evidence of an ownership interest in and a proprietary lease from, a corporation or partnership formed for the purpose of the cooperative ownership of real estate within the State, for the purpose of financing a purchase of or refinancing an existing ownership interest in such a corporation or partnership, provided (1) such investment is secured within 90 days from the making of the loan by an assignment or transfer of the stock or other evidence of an ownership interest of the borrower and a proprietary lease; and (2) repayment of principal and interest shall be effected within 30 years. Notwithstanding any other provision of law, the maximum rate of interest which may be charged, taken or received upon any loan or forbearance made pursuant to this subsection may exceed by no more than 1 1/2 % per annum the rate of interest prescribed by the commissioner which is applicable to mortgage loans on one-to-six family dwellings a portion of which may be used for commercial purposes, pursuant to the provisions of R.S. 31:1-1 et seq.
N.J.S. § 17:2-6