ben, i think the design you selected is great and now you should place all your focus on the content and how visitors will navigate your site.
to expand on jeffrey's comment, it's not immediately obvious what your company does. it wasn't until i got to the footer that i had a better understanding. but even the "about" page is not clear and concise and not talking on a fifth grade level "that utilize Contract Wholesaling to financially build our growing Real Estate portfolio which contains Buy and Hold properties for the use of Rentals throughout the country" and that is just the second part of a very long sentence. and as an opener, your "about" page is about you, and it should never be about you, it should be about your market. seth godin recently released a blog article about the "about" page, here's the link:
http://sethgodin.typepad.com/seths_blog/2010/09/five-rules-for-your-about-page.html
i based my about page on seth's article. you can click on the link on my sig to see what i ended up with. content is king, and design is the chariot, but with poor content, the design doesn't matter much.
based on your comment that the site is originally there to gather a buyer's list, i would make that a major focus on your home page and "about" page and downplay the renters, sellers, by just keeping that in the menu. in fact, if you are directing renters and sellers to your website via craigslist, letters, etc, why not just move the sellers/renters links off the home page, since your marketing for this secondary market is directing them to an internal page.
in your latest news section on some pages you mix listings with news articles (not good) but when you click on a news article, the sidebar widget separates between latest news and latest listings (good).
skipping back to the sellers/renters/buyers pages, there is no call to action in the body. drop in a contact form and rather than telling them to come back and visit your site (they probably won't) ask them for their name, email, and what they're looking for. that way you start building your renters/sellers list and start email campaigns to them when you're ready. on the sellers page, you've got a graphic at the bottom with a big arrow pointing to something that does not direct them to "tell us about your situation."
were it my site, i would replace the member login on the top right, just leave it in the header. instead place a subscribe that will capture their name and email so you can bombard them daily with email solicitations (jk, don't do it daily!) then below the sbuscribe, i would do some sort of call to action to your primary market, investors and ask them to sign up, but just leave the login form on the header.
last, i would have to bring up mark's comment that you dismissed, and phrase it differently. my wife is a professional writer and she has two or three people (let's call them editors) she sends her stuff to before she posts. she does this because she has a great writing voice/style, but sometimes overlooks grammar. the magazine she writes for has an editor that looks through all the articles submitted, and they always make her look even better, but her writing style still comes through. so that long story to say, don't hire a copyrighter, find an editor. it could be a friend/relative you don't have to hire, or hire a professional editor. right now the quality of the king doesn't match his ride.
and after dumping on you (sorry), i want to circle back and say that the site is very much going in the right direction and looks good. it's always that last 10% that separates the great from the good (that's also another seth post that has taught me to go the extra mile).