A promissory note is one of the two documents needed for a Real Estate Loan. All three documents, the deed, promissory note, and the deed of trust, are primary documents in most Texas residential real estate transactions.Tarrant County Deed of Trust Form. Fill in the blank form formatted to comply with all recording and content requirements. Have the document notarized. The original promissory note and deed of trust are given to the lender. A deed is valid even if it is not recorded. A Deed of Trust is typically used in combination with a Promissory Note or Mortgage Agreement which sets out the amount and terms of the loan agreement. (a) A master form of a mortgage or deed of trust may be recorded in any county without acknowledgement or proof. 543, Deed Records of Tarrant County, Texas. 3.