Trust money which is not required to be deposited into a MAHT account may be deposited into any other deposit or investment vehicle: Specified by the buyer or beneficial owner; or Agreed upon by the buyer or beneficial owner and the title insurer or title insurance producer. An agreement referred to in §A of this regulation between a buyer or beneficial owner and a title insurer or title insurance producer shall be in writing and either be: In a separate agreement; or If part of another agreement between the parties, in conspicuous type and initialed by the buyer or beneficial owner.