A Deed of Trust is a real estate security document. Unlike a mortgage which only involves a borrower and a lender, these documents have three parties.Understand Arizona mechanics lien laws, deadlines, and notice requirements on private construction projects, including free forms. The document must be recorded in the county in which the property is located in order to have a complete and valid trustee sale transaction. In this article, we break down the fundamental requirements and procedures for executing a Deed of Trust in Arizona. Insert the property description information and the address in the Short Form Deed of Trust. Arizona Supreme Court to Contractor: Sorry But Equitable Subrogation of a Bank's Later Deed of Trust Trumps Earlier Mechanics' Lien Rights. It is your obligation to speak with an expert attorney who can apply current legislation or laws to your personal situation in a professional manner. It does not transfer the ownership of real property in the usual sense. Substitution of Trustee.