535A.3  Discretion of financial institution.
  Nothing contained in this chapter shall preclude a financial institution from applying economically sound underwriting practices in contemplation of any mortgage loan to any person. Such practices shall include but are not limited to the following:
  1.  The willingness and the financial ability of the borrower to repay the mortgage loan.
  2.  The appraised value of any real estate or other item of property proposed as security for any mortgage loan.
  3.  Diversification of the financial institution’s investment portfolio.
[C79, 81, §535A.3]