1. Complete the Application Form. Complete our online application form here.If you are considering a Declaration of Trust, it is important to understand what it is and how it can impact your legal and financial situation. A Deed of Trust is a legal document. To be validly executed as a deed, each individual must sign the document. Making one's mark on a document is treated as signing it. Edit, sign, and share deeds of trust online. No need to install software, just go to DocHub, and sign up instantly and for free. A Declaration of Trust is based on co-owners contributions to the deposit, mortgage, and ongoing maintenance costs. For use in England and Wales only.