Park51 developer Sharif El-Gamal, accidental protagonist of the most politicized real estate story in recent memory, sat behind the blond-wood desk in his office six floors above the lower Broadway mall, and, meaty hands clasped before him, held forth on what it takes to make it in real estate. After all, it is real estate—not fanning national anti-Muslim hysteria—that is Mr. El-Gamal's actual business. "You know, the real estate business is a very tough business, and you have to be patient and persistent, and aggressive, and thank God I have all those qualities," said Mr. El-Gamal, who looks something like...