South Dakota uses which security instrument?

Understanding which security instrument a state uses is fundamental to real estate practice because it directly impacts property rights, foreclosure procedures, and risk allocation between lenders and borrowers. This question specifically tests knowledge of South Dakota's approach to financing instruments. The core concept distinguishes between mortgages (which create a lien directly between borrower and lender) and deeds of trust (which involve a third-party trustee). To arrive at the correct answer, we must recognize that South Dakota follows the judicial foreclosure state model using mortgages, not the non-judicial foreclosure model typically associated with deeds of trust. What makes this question potentially challenging is that students often confuse states' approaches based on regional patterns or assume all states use similar instruments. This connects to broader knowledge about foreclosure processes, property rights, and the legal distinctions between different security instruments across state jurisdictions.