ORION BROADCAST <OBGI.O> BUYS FORD <F> UNIT Orion Broadcast Group Inc said its majority-owned Orion Financial Services Corp subsidiary has agreed to purchase FN Realty Services Inc from Ford Motor Co for 1,200,000 to 1,500,000 dlrs in cash and notes. It said closing is expected within 45 days after receipt of regulatory approvals. FN provides loan collection, accounting, data processing and administrative services to the real estate industry.