Niki from Trulia here. Trulia advertising can be targeted to a specific ZIP code or City, but not a specific group of consumers (i.e. cash buyers). Our Local ads maybe what you are looking for to increase your exposure and market your services. You can review our Local Ad product at http://www.trulia.com/localads/. You can also chat with a live product specialist from this page. Trulia has 24 million unique users per month, make sure your listings are posted on our site for motivated buyers. We do have an "investment property" category to further distinguish your listing.
Thank you for using Trulia for all of your real estate needs! If you have further questions you may contact us directly at firstname.lastname@example.org.