I have found this link for better understanding of a Comparative Market Analysis on Real Estate :
http://www.realtor.com/advice/understanding-the-comparative-market ... more
Reading the agreement again is the best thing to do , you can check then those agreement under sign so no need to discuss more and more and end up fighting .. and taking pictu ... more
Try reading this link it might be a helpful tips for you - http://articles.economictimes.indiatimes.com/2010-02-21/news/27577135_1_loan-post-dated-cheques-bank-returns
You can consult an expert with this kind of problem. Like good agent , that can explain to you better the situation and the process of renting a home.