Lynn LaChapelle

Lynn LaChapelle, a managing director of the Capital Markets Group for Jones Lang LaSalle (NYSE: JLL), remains upbeat even during a downturn.

LaChapelle said the number of commercial property transactions, which had dropped to a trickle in 2009, are beginning to accelerate once more.

"Sales doubled here in 2010," LaChapelle said. She expects the transaction volume to increase by another 25 percent in 2011.