By some accounts, 1997 will finally be the year of big thrift sales in  California. But a lingering legacy of the thrift debacle threatens to gum   up the works.   
Some of the state's most desirable targets, including the nation's  largest thrift, H.F. Ahmanson & Co.'s Home Savings of America, Irwindale,   are tied up in complex lawsuits against the federal government that date   from the thrift crisis.     
  
Though potentially lucrative, the so-called goodwill suits raise sticky  price and accounting issues. 
The problem has arisen in Seattle-based Washington Mutual Inc.'s  negotiations to buy $8.7 billion-asset Coast Savings Bank, Los Angeles. And   some say the suits, combined with the overly rich stock prices of takeover   targets, will frustrate most dealmakers this year.     
  
Among the takeover skeptics is Edward G. Harshfield, chief executive of  the former California Federal Bank, who sold the $14 billion-asset thrift   to First Nationwide Bank for $1.2 billion in a deal closed in January.   
"You've got Coast, Home, and Glendale (Federal Bank), all with goodwill  lawsuits," said Mr. Harshfield, now vice chairman of the merged institution   that bears the CalFed name. "It strikes me that the probabilities of   further acquisitions (this year) are 80-20 against."     
After last July's favorable Supreme Court decision on three of the  roughly 125 goodwill cases, buyers and sellers in California would rather   just wait for the suits to be settled, Mr. Harshfield said. Some suits may   be resolved as early as this year.     
  
The lawsuits were filed to force the federal government to pay up for a  1989 decision by Congress to outlaw favorable accounting treatment   previously allowed to healthy thrifts to encourage their takeovers of   troubled thrifts.     
The lawsuits complicate agreement on a takeover price because it's  impossible to know how much any given thrift will eventually win in its   suit or when it will be paid and because the potential winnings inflate the   target's current stock price.     
"What you're really buying is a combination of a lottery ticket and an  operating franchise," said an investment banker familiar with such deals.   "It's hard to know if you're overpaying for the franchise as a result of   things that ought to be attributed to nonrecurring events."     
Moreover, attempts to segregate the future winnings, such as California  Federal's spinoff of potential winnings into separate securities, imperil   the use of "pooling of interests" deal accounting. That method, favored by   most financial institutions, lets the buyer simply merge the two balance   sheets into one and eliminates the need to amortize the premium over book   value against future earnings.         
  
Well-placed sources said that both Washington Mutual and Coast Federal  are working on these knotty issues in their talks. Coast, which is believed   to have one of the strongest cases against the government, could win a   bundle for the $300 million capital credit it was forced to take off its   books early in the '90s. It is said to want to spin off the winnings into a   security modeled on CalFed's in order to facilitate a merger.         
One market source said Washington Mutual chief executive Kerry Killinger  has "moved toward being willing to work on purchase transactions." 
That would involve buying Coast for cash or new stock and then writing  down the premium against Washington Mutual's future earnings. But it would   not conflict with a spinoff of any award from the lawsuit.   
The mergers of NationsBank Corp. with Boatmen's Bancshares and of First  Interstate Bancorp with Wells Fargo & Co. each used purchase accounting. 
But the investment banker familiar with such deals said that purchase  deals are still too much of an unknown quantity, making such a resolution   less likely.