Improvements to Existing Wordpress Site

I have an existing wordpress site that needs some basic adjustments and improved SEO. It is primarily a real estate website/blog and I have an IDX (home search) service I subscribe to and have added to the site. The layout looks a little funky, such as gaps and page size issues. I need some adjustments made to make everything look professional and function correctly. This should be very basic for someone who knows code. I have reached the limit of my code knowledge and now need a pro to step in an help. I may also need some design work, such as a new more professional looking header. So we can discuss additional work after the above is complete. The site is [login to view URL] (check out the Home Search tabs to see what I mean about the layout)