So since you're way ahead of the game. I would like to suggest this. The ideas behind rentpost.com have been on my mind for a few years now. I've never done anything to pursue it so congrats, the site looks great. Please, grow and hire people so that this saturates the market. Then, when large enough, please provide a clean interface for prospective tenants to view apartment listings. Searching for apartments have got to be one of the biggest pains to deal with. If you have a central database of awesome tech-savvy apartments with your website as a portal for great customer service, I don't see why you can't make your customers more happy by providing listings.