The way to win your case and drive the debt collectors away is to conduct discovery and make them give you the information you need to beat them. For a full discussion of discovery, of course, you need my Litigation Bundle or Video Series. But the articles and videos below will definitely help you get started.
Conducting Discovery, Part 1 Article. How to conduct discovery when sued for debt
Conducting Discovery, Part 2 Article. How to conduct discovery when you're sued for debt.
Forcing the Debt Collector to Cough Up Information in Discovery Video. Here's how and why to file a motion to compel. For an extensive discussion and all the material you need to file a motion to compel as easily as it can be done, get my motion to compel pack.
Rule-Mandated Discovery Video. In some jurisdictions or courts the parties are required to give each other information. Here's what you should do if you are in one of those jurisdictions.