(a) The mortgage was given to a seller to secure the unpaid balance of the purchase price of real property; or
(b) The mortgage was given after September 13, 1975, to a person other than a seller to secure not more than $50,000 of the unpaid balance of the purchase price of real property used by the purchaser as the primary or secondary single family residence of the purchaser.
(2) If a purchaser gives more than one mortgage to a seller or a single lender to finance the purchase of real property that the purchaser uses as the purchaser’s primary single family residence and the seller or lender or a subsidiary, affiliate or successor of the seller or lender continues to hold the mortgages at the time of foreclosure, judgment remedies for the collection of unsatisfied amounts that the grantor owes to the seller or lender or the subsidiary, affiliate or successor of the seller or lender on notes secured by the mortgages expire when the real property is sold in accordance with the foreclosure. [Formerly 88.070]