In investment and distribution of estate assets or in the use or withdrawal of a power of revocation, and in titling accounts, the conservator and the court must consider any: (A) known estate plan, including a revocable trust having the protected person as settlor; or (B) instrument, including, but not limited to, a contract, transfer, or joint ownership arrangement originated by the protected person which provides a benefit at death to another as referenced in Section 62-5-422.