Download this South Dakota Irrevocable Living Trust form which allows an individual to set aside assets and property in a separate entity for the benefit of his or her beneficiaries. A trust provides flexibility because it allows the grantor the ability to determine how, when, for what purpose and to whom his or her assets will be disseminated. A trust provides continuity of asset management because it continues as an entity in existence throught the life of the grantor and after his or her death. A trust is also private. A trustee is tasked with managing the trust as set forth in the trust instrument and for the benefit of the beneficiaries. An irrevocable trust is not meant to be changed or revoked.