Kitts said his lawyer has drafted a lawsuit that he hopes will force Amanda Reece to turn over the money she has kept. Meanwhile, Reece accuses Kitts of shaking her down.
Most of the currency, issued in 1927 and 1929, is in good condition, and some of the bills are so rare that one currency appraiser valued the treasure at as much as $500,000, Kitts said.
The fight began in May 2006 when Kitts was gutting Reece's bathroom and found a box below the medicine cabinet that contained $25,200.
"I almost passed out," Kitts recalled. "It was the ultimate contractor fantasy."
He called Reece, who rushed home. Together they found another steel box tied to the end of a wire nailed to a stud. Inside was more than $100,000, Kitts said. Two more boxes were filled with a mix of money and religious memorabilia.
"It was insane," Kitts said. "She was in shock -- she was a wreck."
The bundles had "P. Dunne" written on them, probably a reference to Peter Dunne, a businessman who owned the home during the Depression.
Kitts said he took some of the currency for an appraisal and learned that many of the $10 bills were rare 1929-series Cleveland Federal Reserve bank notes, worth about $85 each. There also were $500 bills and one $1,000 bill.
John Chambers, an attorney for Reece, said Kitts rejected his client's offer of a 10 percent finder's fee and demanded 40 percent of the small fortune.
Kitts asserts he found lost money, and court rulings in Ohio establish that a "finders keepers" law applies if there's no reason to believe any owner will reappear to claim it.
Kitts said it would be unfair for him to take everything.
"For such a happy, exciting adventure, I can't believe it just went to heck like this," he said.