Billie and Curtis Harris challenge the trial court's order granting summary judgment in favor of Deutsche Bank National Trust Company. The appropriate person must sign the document, and that person's signature must be notarized (i.e., Release, Deed of Trust, Deed, etc.). Refer to your existing deed of trust and it will probably state that it covers all extensions, renewals and modifications. Time Limit on Advance - A mortgage shall not constitute a lien after 20 years after the date of execution if no maturity date is stated in the mortgage. A Texas Deed of Trust creates a lien on property to secure a Promissory Note. These are two documents needed for real estate loans and seller financing. A legal document that gives a lender a security interest in real property until the loan is paid off; typically used together with a promissory note. Sales under deeds of trust that contain no maturity date or provision authorizing sale. The Loan shall bear interest at an adjustable rate as set forth in the Consolidation Agreement with interest only payable quarterly and on the Maturity Date.