Once-ballyhooed buyout becomes legal slugfest:
No wonder investors are fleeing both Finish Line Inc. and Genesco Inc., the Tennesseebased company that, until recently, Finish Line desperately wanted to buy. Finish Line agreed in June to acquire the fellow mall retailer for $1.5 billion in cash, or $54.50 a share. Now, though, Finish Line is so determined to get out of the highly leveraged deal that it suggests in a new court filing that the purchase would trigger its own financial ruin. The Indianapolis company says…