Lehman Brothers' bankruptcy filing and Bank of America's buy-out of Merrill Lynch will not only permanently alter the global banking landscape, it will also have implications for the New York office market. The biggest impact will come in the form of available sublease space, since the two firms occupy approximately 6 million square feet in Manhattan. In addition, the struggles at AIG need to be closely monitored, since the firm owns and leases close to 3.5 million square feet of office space in Manhattan.