Deeds of trusts are "a deed conveying title to real property to a trustee as security until the grantor repays a loan. Deeds, plats, liens, powers of attorney, oil and gas leases, and many other documents.A deed of trust is a deed given to a third party, the "trustee," to hold until certain conditions are fulfilled. 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. It explains in plain English how the process works and includes step-by-step instructions on how to fill out the necessary forms and paperwork. Tarrant County Certificate of Trust Form. Fill in the blank form formatted to comply with all recording and content requirements. I'm just going to take you through the exact process of how to fill out a deed of trust exactly and you can see what I mean it's very straight forward. Once the application has been completed, the process must be completed in person at any of our eight locations listed on the Tarrant County website.