Mortgage Note Investing in South Dakota

South Dakota's headline for a note investor is the redemption period, not the foreclosure itself. Foreclosure can run judicially or non-judicially by advertisement and completes reasonably quickly, but the borrower then holds a one-year post-sale right of redemption under S.D. Codified Laws §21-52-11. For a full year after the sale, the borrower can buy the property back, and your title stays clouded until that window closes.

There is one important escape hatch. The redemption period drops to 180 days only when the security instrument is an express short-form redemption mortgage that elects the shorter term. If your collateral is a standard deed of trust or mortgage without that election, assume the full year — read the instrument before you model the exit, because the difference is six months of carried, illiquid capital.

The rest is straightforward. Delinquent taxes are senior to your lien, and South Dakota tax certificates run a three-year redemption at 12%. Deficiency judgments are available against the borrower, and no state license is required to buy or hold these notes. The South Dakota thesis is patience driven by redemption, not by foreclosure speed — underwrite to a slow, clouded exit unless the note is an express short-form redemption mortgage.