The important feature is that the mortgage secures frequent and routine future advances to be added to the loan balance. Open-end clauses regarding future advances valid.- Open-end or "dragnet" clauses regarding future advances in deeds to secure debt are valid and enforceable. Addition of a future advance clause where none existed in the original mortgage, deed of trust, or deed to secure debt. A real estate mortgage or deed conveying realty as security for a debt shall secure advances made: (5) To complete improvements on the property. All capitalized terms not defined in this document have the meanings given to them in the Guide. Atlanta Real Estate Attorney explains Georgia Deeds and Mortgages involved in financing purchase of land or home. Other devices include the absolute deed as security, the contract for deed, and the "negative pledge.