Former contractor abandoned project 32% complete but claims over 50%. I've been asking for over a year for proof of purchase to prove the 50%. He refuses. What can I do?

 If a former contractor has abandoned a project and is claiming completion percentages that you dispute, it's crucial to establish a clear paper trail. Collect all relevant documentation, including contracts, emails, and project updates, to build a comprehensive case. This evidence will be valuable in demonstrating the actual progress made on the project. Request a written breakdown from the contractor, outlining the tasks completed and the basis for the claimed 50%. 

If the contractor refuses to provide proof or cooperate, consider sending a formal letter requesting this information and expressing your concerns. Make it clear that failure to provide evidence may result in legal action. If the dispute persists, consulting with a legal professional is advisable. They can assess your case, guide you on the best course of action, and potentially help mediate or escalate the situation legally.

In the meantime, keep all communication professional and well-documented. Avoid confrontational language, as maintaining a record of your attempts to resolve the issue amicably can strengthen your position in any legal proceedings.