Transwestern is the advantage.

   Transwestern is one of the largest privately-held commercial real estate firms in the United States.
A diversified operating company, Transwestern is active in the real estate service, development and investment management businesses. Transwestern creates value for clients through innovation, penetrating market intelligence and legendary service delivered by teams of local market experts.
The firm has product specialties including office, industrial, retail, multifamily and healthcare, as well as a wholly-owned research affiliate, Delta Associates.
Transwestern leads the industry in sustainability and has received multiple ENERGY STAR awards from the Environmental Protection Agency (EPA).

http://dallas.transwestern.net/