Based on what you write, the agent may have committed fraud: intentionally or knowingly misrepresenting an important fact (the occupancy and rent), upon which you relied in deciding the buy the home. Fraud would normally provide a ground or basis to sue, such as for the money you lost out on due to the fraud; unfortunately, it appears to be too late to take any legal action. All lawsuits must be initiated or filed within what is known as the "statute of limitations." The statute of limitations in your state for fraud is four years; however, if you bought the home six years ago as your write, that means that the fraud occured at least six years ago--when the agent represented that you had two tenants in the home paying $600 each per month in rent. You would have had to have started your lawsuit within four years of the fraud or misrepresentation; if six years have gone by, too much time has passed and you can no longer take legal action.