Sterling will die before NBA suit settled: O'Leary

Donald Sterling to fight for Clippers

Los Angeles Clippers owner Donald Sterling has a right to pursue his $1 billion federal lawsuit against the National Basketball Association, but the 80-year-old might not live to see the end result, millionaire businessman Kevin O'Leary told CNBC on Tuesday.

Kevin O'Leary

"This will not be resolved until Mr. Sterling is dead because this is going to last three to seven years ... I don't think he's going to outlast the litigation. It'll get settled after he's passed," said O'Leary, star of the hit entrepreneur-based reality show "Shark Tank."

"I'm sorry to put it that way, but you better get ready for a ride that long because that's exactly what's going to happen, and that's the right thing to do in America," he said on "Squawk Alley." "You don't take somebody's property away without going through the process first."

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Los Angeles Clippers owner Donald Sterling.
Robyn Beck | AFP | Getty Images

Sterling was banned for life by the National Basketball Association in April over a leaked recording of racist remarks he made.

On May 30, Sterling sued the NBA and its commissioner, Adam Silver, seeking at least $1 billion in damages, just as the league tentatively approved a deal by his estranged wife, co-owner of the franchise, to sell the club for $2 billion to former Microsoft CEO Steve Ballmer.

Though O'Leary vehemently disagrees with Sterling's statements, he does think the embattled NBA owner is entitled to due process in court.

"It's un-American to take away people's property. End of story."

—By CNBC's Drew Sandholm with Reuters.