Tennessee Code Title 35. Fiduciaries and Trust Estates § 35-3-113

(a) Executors, trustees and guardians are authorized, with the approval of a probate court or other court of competent jurisdiction, to invest out of income or principal of funds in their custody, in single or annual premium life, endowment or annuity contracts of legal reserve life insurance companies duly licensed and qualified to transact business within the state.

(b) Such contracts may be issued on the life or lives of any beneficiary, cestui que trust or ward, who may have a vested or contingent interest in the estate, or on the life or lives of any parent, trustor or other person in whom any beneficiary, cestui que trust or ward may have an insurable interest, and shall such be so drawn that the legal title of the policy or contract shall be in and the proceeds or avails of the proceeds payable to and in the control of the fiduciary making the investment, and may be retained and shall be subject to transfer, assignment and conveyance by the fiduciary as other personal property held in the account.