Who is Tom Corbett from Deal Breaker and what is their importance?

Corbett is the owner and president of Getaway Realty. Corbett is around fifty-five years of age and bald. He wears a "long, scraggly beard, like a college professor's" (pg. 238.) When Jessica Culver meets Tom Corbett, he is dressed in jeans, a flannel shirt and a tie, and wears red Chuck Taylor Converse tennis shoes. Corbett is the man who rented the cabin in the woods to Adam Culver shortly before Culver was murdered.