Conference brings top deal makers to region.

Northwest property owners and managers are spit-shining their buildings and polishing their presentations as they prepare for more than 500 of the world's corporate real estate executives to descend upon Seattle.

The decision makers will visit the city May 12 through 16 for the International Development Research Council's Pacific Northwest World Congress. The IDRC's convention provides its members with educational seminars.

But organizers admit it's a giant schmooze-fest where multinational business leaders check out the Greater Seattle area as a viable option for expansion, and economic development leaders and the local real estate community woo companies …