This collateral agreement template is what you need to secure an item of value as collateral for monetary debt. This document is a collateral release request and acknowledgement form for an auto or housing loan.It requests the release of collateral documents. A Release of Collateral Letter is a legal template that sets out the terms and conditions for the release of collateral used as security for a loan or debt. Discover the seamless way to fill in letter directly within your Collateral Agreement Template, all from the comfort of your browser.