The office may refinance student and parent loans as provided by this section and on other terms and conditions the office prescribes. The office may establish credit requirements for borrowers and determine what types of student and parent loans will be eligible for refinancing. The refinanced loan need not have been made through a loan program administered by the office. Loans shall be made with available funds in the loan capital fund under section 136A.1785. The maximum amount of outstanding loans refinanced under this section may not exceed $100,000,000. The maximum loan under this section may not exceed $70,000.