Morgan Stanley is eyeing this Uptown site along McKinney Avenue for a 700,000-square-foot office tower that would serve as the firm's regional headquarters. Leonardo Rosas | Dallas Business Journal Preview this article 1 min As Morgan Stanley considers Dallas for a regional headquarters that could employ thousands, Mayor Eric Johnson has something to say. Learn more about public officials' efforts to court the investment giant and read about recent public filings tied to the potential project.