Mark Thiel specializes in the acquisition and disposition of net-leased investments and retail shopping centers throughout the United States. Mark is the founder and creator of NNN Fitness, the market leader in the sale of big box health club properties nationwide. Throughout his career, Mark has closed more than $2 Billion in transaction volume and over five million square feet of retail investment properties across 40+ states. Mark serves as a Senior Director of both the National Retail Group and the Net-Leased Properties Group at Marcus & Millichap where he has ranked among the Top 10 retail and net-lease agents since 2010. With access to the industry’s largest and most powerful sa

Tim Speck serves as a senior vice president and division manager of the firm’s Texas offices. He is active in the firm’s agent training and development programs, facilitating several training classes every year and working closely with agents of all levels to help them successfully launch and advance their careers. And under his leadership, the Dallas office has grown into one of the firm’s top offices. Mr. Speck joined Marcus & Millichap in 1993 as a sales assistant in the Dallas office. With the formation of the firm’s research department in 1996, he relocated to the Phoenix office and became a divisional research manager. During his tenure, he was charged with establishing local r