"Brett's relationship-building and management skills are unmatched in the industry, and his presence will allow Grubb & Ellis to expand its client relationships both in Atlanta as well as nationally," Steve Dils, executive vice president and managing director of Grubb & Ellis' Atlanta office, said in a released statement.

"The biggest thing for me is that I'm joining a growth company that's expanding and getting their market out there to their client base," Hunsaker tells GlobeSt.com. "That taps into what I do best: client relations and new business development."

Hunsaker spent the last 20 years with CBRE and says it was a tough decision to leave such a great company where he has so many friends. "It was a decision I made to move from being in a local Atlanta market, where we've had great growth, to go back on the national stage and utilize my strengths," he says.