70 Percent of the Work Appraisers Did at Landsafe, Bank of America's Appraisal Division, Was Related to Soured Home Loans   Bank of America Corp.'s appraisal division LandSafe reduced about 5% of its work force, beginning Feb. 22, Bloomberg News, The Appraisal Institute, and Housing Wire reported.   LandSafe had more than 1,000 employees, the report said.  Hugh Son at Bloomberg explains a bit about the move ...