189—9.2 (533) Evidence of title. When lending for the purpose of acquisition or for the purpose of refinance of acquisition, when a new mortgage, deed of trust, or similar instrument is filed, the credit union shall obtain either:
	  1. 	 A written legal opinion by an attorney admitted to practice in the state in which the real estate is located showing marketable title in the mortgagor and describing any existing liens and stating that the credit union’s mortgage, deed of trust, or similar instrument is a first lien on the real estate; or
	  2. 	 Title insurance written by an insurance company licensed to do business in the state in which the real estate is located describing any existing liens and insuring the title to the real estate and the validity and enforceability of the mortgage, deed of trust, or similar instrument as a first lien on the real estate.
This rule is intended to implement Iowa Code sections 533.4(21) and 533.16(4)“a.”