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. Maturity Date: DEED OF TRUST.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. The loan modification updates certain termslike interest rates or the maturity datebut it doesn't replace the original note or deed of trust. A discussion of legal principles applicable to foreclosing mortgage liens in Arizona. 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. A Deed of Trust creates a lien on real property as security or collateral for a loan.