False statements or representation: Debt collection

I am disputing this apartment collection because I believe the debt is inaccurate and has not been properly validated. I requested documentation showing how the balance was calculated and proof that I am legally responsible for the amount being collected, but the collector has not provided sufficient evidence. I request that the collection agency provide a complete itemized accounting of the alleged debt, copies of the lease agreement, move-out statement, any invoices for damages or charges, and documentation showing they have the legal authority to collect this debt. If they can not verify the debt with proper documentation, I request that all collection efforts cease and that any reporting to the credit bureaus be corrected or removed. I also ask that this account be marked as disputed while the investigation is pending. I am requesting a fair and thorough investigation in accordance with applicable federal law.