Bloc Development Corp, Coral Gables, Florida has completed acquisition of Softsync Inc 250,000 new Bloc shares with an earnout worth up to 1.05m more shares over four years: New York-based Softsync develops business software for the Apple Computer Inc Macintosh and recently released Accountant Inc Professional, a comprehensive accounting and financial management package for small and mid-sized businesses, which sells for $600; Bloc does business, utility and data management software for the MS-DOS market and SoftSync also offers a line of MS-DOS utilities.