Are you familiar with the deed of trust? In Arizona, this is the primary financial security document that's used when purchasing a home.A. The lien of any mortgage or deed of trust on any real property that is not otherwise satisfied or discharged expires at the later of the following times:. Find out about Arizona Deed of Trust requirements, including legal steps, roles, and benefits, to ensure proper real estate transactions. Although the word "deed" is in the name, a deed of trust is not considered a conveyance. Instead, a deed of trust is merely considered a lien on real property. In real estate transactions, a trust deed transfers the legal title of a property to a third party until the borrower repays their debt to the lender. The Deed of Trust, or Mortgage, is executed and recorded in the county in which the property is located.