SDCL § 29A-6-411: Revocation by more than one transferor.

If a transfer on death deed is made by more than one transferor:

(1) Revocation by one transferor does not affect the deed as to the interest of another transferor; and

(2) A deed of joint owners is revoked only if it is revoked by all of the living joint owners.

Source: SL 2014, ch 133, § 11.