1. Your client, Katherine, has investigated an upcoming foreclosure sale for the purpose of bidding at it. The sale is being conducted by the sheriff under a final judgment of foreclosure in favor of John on a mortgage securing a debt in the amount of $10,000. The judgment specifically forecloses a subordinate mortgage in the amount of $29,000, but makes no mention of a senior mortgage in the amount of $17,000. Katherine has examined the property and concluded that she is willing to pay up to $25,000 to own the property free and clear of all liens. The sheriff's expenses in conducting the sale are $200. What is the maximum amount Katherine should bid at the sale? Compare UCC section 9-617(a).