A blockbuster Facebook office deal is a make-or-break moment for the future of commercial real estate. 3 leasing experts lay out the stakes.

· Facebook has been in negotiations for months to lease over 700,000 square feet at the Farley Building on Manhattan's West Side. 
· Office leasing activity in the city has plummeted, giving the blockbuster deal even more importance as a sign of life in a suddenly lethargic market.
· The coronavirus has spurred a deep...