SDCL § 43-31-22: Appointment of guardian ad litem on whom service of application and order may be made to require incapacitated spouse to join in conveyance or mortgage of homestead.

If there has been an adjudication of incapacity but no such conservator is acting, the court shall appoint a guardian ad litem on whom such service shall be made, and the guardian ad litem shall represent and protect throughout the proceedings the rights of the person adjudged to be incapacitated.