PORTLAND — A Maine judge has upheld a jury verdict that awarded $7.3 million in damages for emotional distress to a businessman who contended he was double-crossed by a law firm he hired.

A Cumberland County jury last summer said the Portland law firm of Bernstein, Shur, Sawyer and Nelson worked against Peter Redman’s interests in a dispute with his brother over control of the now-defunct Northern Mattress and Furniture Co. In a 37-page ruling, Superior Court Justice Thomas Humphrey denied the law firm’s motion seeking a new trial.

Redman, of Old Orchard Beach, was banned from the family business’ headquarters over a sexual harassment claim he contended was orchestrated by his brother to wrest control of the business. Redman said the firm failed to defend him against the accusations.