A Business Tools Group seminar, "Want to Sell Your Business?... What You Would've, Could've, Should've Done," will be presented Wednesday, Sept. 28 from 9 to 10:30 a.m. at the Baltimore Washington Corridor Chamber office, 312 Marshall Ave., Suite 104. Speaker is Michael Balakirsky, of Sophos Financial. Members prepaid $10, members non prepaid and non-members $30. Light breakfast sponsored by Human Resources Inc. Register at http://www.bwcc.org/BWCC_Data/getEventDetails?eventID=884