Deed of Trust (with future Advance Clause). Up of a document Description automatically generated.Future advance clauses. This clause allows your lender to provide you with additional funding in the future, using the same property as collateral. The important feature is that the mortgage secures frequent and routine future advances to be added to the loan balance. A deed can only convey what the grantor owns and no more. This is true even if the deed "purports to transfer a greater right or estate in the property" (Prop. Deed of Trust (with Future Advance clause). 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.