And how he learned this the hard way. : Click the Follow button on any author page to keep up with the latest content from your favorite authors. In this series called Member Showcase, we publish interviews with members of The Oracles. This interview is with Robert Martinez, founder and CEO of Rockstar Capital, a real estate investment firm in Houston, Texas. It was condensed by The Oracles. Who are you? Robert Martinez: I am an investor in multi-family real estate and the founder and CEO of Rockstar Capital.