When a mortgage is assigned, extended, or otherwise dealt with, a memorial of the instrument shall be made upon the CPT. In case only a part of the mortgage upon the land is intended to be released or discharged, a memorial of the partial release shall be entered.
Minn. Stat. § 508A.56
1982 c 396 s 49; 1992 c 463 s 19; 1999 c 11 art 1 s 55