Mo. Rev. Stat. § 456.8-802
2. Subject to the rights of persons dealing with or assisting the trustee as provided in section 456.10-1012, a sale, encumbrance, or other transaction involving the investment or management of trust property entered into by the trustee for the trustee's own personal account or which is otherwise affected by a conflict between the trustee's fiduciary and personal interests is voidable by a beneficiary affected by the transaction unless:
3. A sale, encumbrance, or other transaction involving the investment or management of trust property is presumed to be affected by a conflict between personal and fiduciary interests if it is entered into by the trustee with:
6. The following transactions are not presumed to be affected by a conflict between the trustee's personal and fiduciary interest provided that any investment made pursuant to the transaction complies with the Missouri prudent investor act.
8. The following transactions, if fair to the beneficiaries, are not presumed to be affected by a conflict between personal and fiduciary interests and are not precluded by this section:
(L. 2004 H.B. 1511)
Effective 1-1-05