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 Deed of Trust in Texas transfers title of real property in trust. It is the equivalent to a mortgage used in other states and provides a secured interest. A Texas deed of trust is a security instrument that transfers a property title to a trustee to meet the owner's obligations to a lender. What is the Relationship Between a Note and a Deed of Trust? A promissory note is often used together with a deed of trust. Form deed of trust document used in Austin County, Texas, covers the requirements for most lenders. A trust deed is always used together with a promissory note (also called "prom note") that sets out the amount and terms of the loan. Fill in the blank form formatted to comply with all recording and content requirements.