Bob entered into a land contract to purchase real estate from Sam. The purchase price was to be paid over a 10-year period by monthly amortization. At the end of five years, Bob defaulted, having failed to make his required payments. The contract provided that in event of default, the seller could declare a forfeiture after a period of 30 days and repossess the property. If the court should consider the land contract an equitable mortgage, what might be the rights of Bob and Sam?