A power of attorney or certified copy thereof must be recorded to establish the authority of an attorney in fact to act on behalf of the principal. The power of attorney must include in its grant of authority the power to sell or convey if a deed is being executed; or the power to mortgage, pledge or grant as security for loans if a mortgage is being executed. The power to sell or mortgage shall be presumed to include the authority to execute the documents related to consummating the transaction.
SDCL app TO CHAPTER 43-30 § 5-20