A demand letter is a letter you can send to try to resolve a dispute before going to court. Demand letters are often sent in cases where someone owes money.Due to high volume and duplicate filings, we are no longer accepting filings via email or fax. Please file all filings and pleadings through eFileTexas. Write a Formal Demand Letter in Dallas for requesting money, possession of assets, or action on a matter. Learn the key steps and strategies for crafting a powerful demand letter to assert your rights and seek fair compensation. Boost your chances of success. Fill-out and send in form and supporting documentation establishing your right to receive the property. It shows readers how to write a demand letter, file and serve papers, prepare and present a case, prepare evidence, and mediate an out-of-court settlement. Available Forms: Exemption Forms, Business Personal Property Forms, Other Forms, Human Resources.