Create an advanced search page and a new search results display by ActiveTenants

I would like to add an advanced search to my site similar to http://www.loopnet.com/forlease/?FromMoreOptions=true&LinkCode=450. My site is activetenants.com. I would also like the search results to… (Budget: $30-$250 USD, Jobs: Graphic Design, HTML, PHP, Website Design, WordPress)