The D.C. Court of Appeals is scheduled to review the case Wednesday. The lawsuit was first brought against Custom Cleaners more than three years ago by then-administrative law judge Roy Pearson.
Pearson sued the mom-and-pop business for $67 million in 2005 after the cleaners misplaced a pair of his trousers. He later lowered his demand to $54 million.
The case went to trial last year and a D.C. Superior Court judge ruled in favor of the South Korean immigrant owners, awarding Pearson nothing.