One of the country’s wealthiest real estate moguls, Franklin L. Haney, won a little and lost a little in the latest round in a South Florida legal spat over taxes on his multimillion-dollar Manalapan mansion.

Washington, D.C.-based Haney, who amassed his fortune by building federal offices, is now fighting a public agency over his tax bill. He’s litigating against Palm Beach County Property Appraiser Gary Nikolits in a case that reached Florida’s Fourth District Court of Appeal.