2008_09_bldgs.jpgWall Street rebounded at the end of the week, but the commercial and residential real estate markets are getting ready for financial sector fallout. The NY Sun reported that Bank of America's acquisition of Merrill Lynch may mean another 4.2 million square feet of office space on the block. Still, brokers and the city are relieved that Barclays is taking Lehman's 7th Avenue office and the feds saved AIG, as they make up 6.2 million square feet. On the residential side, the Real Deal suggests landlords may offer more concessions, like out-of-state guarantors on top of free month's rent and owner-paid commissions. One rental firm said a landlord "called and asked me how many of our tenants work for Lehman Brothers."