Source: therealdeal.com Buchanan Street Partners has picked up a 120,300-square-foot office building in Laguna Niguel for $28.1 million. The Newport Beach-based real estate investor bought the four-story Oakbrook Plaza at 24422 Avenida de la Carlota with plans to convert it into a medical building, the Orange County … [Read more...] about Buchanan Street Pays $28M for Laguna Niguel Office Building