[A]gents like Mathys are resorting to reconnaissance and back-channel networks to find homes that haven't yet hit the market. They're cold-calling homeowners with offers and targeting specific neighborhoods with direct mail. Some come bearing bizarre gifts in return for a listing. One agent offered a seller the use of his exotic car; one of his clients offered free dogs.

And they're chasing so-called pocket listings, homes privately marketed among those in the know. The low-profile nature of the listings makes them hard to quantify. But agents and other real estate experts say they've become common in the booming Southland market, where the median home price shot up nearly 25% in the last year.

Mathys — a 10-year veteran who, with his partner Tracie Kersten, specializes in high-end San Diego properties — said he'd never before seen the market this tight or felt the need to get this creative.
emphasis added