Here's how real estate investors lose up to $20,000 in a moment. The landlord is trusting that their information that the applicant is giving them is truthful. To prevent getting false information, you need to verify that the person that's making the application is actually the person that submitted the documents. You need to make sure that the documents are not altered or false. You're looking to lose 10 to $20,000 easily if you trust the information the applicant gives you.