United States, Oct. 20 -- JLL Capital Markets announced today that it has completed the $64 million sale of North 40, a 354,376-square-foot office portfolio in Boca Raton, Florida.JLL represented the sellers, Mainstreet Capital Partners and Partners Group, a leading global private markets firm, acting on behalf of its clients, in the sale of the assets.North 40 comprises two office buildings totaling 354,376 square feet across 23.1 acres. Originally delivered between 1983 and 1985, part of the properties underwent comprehensive renovations between 2014 and 2018, with additional capital improvements completed in 2024-2025, including a new tenant amenity center featuring shared kitchen, bar, seating areas, conference rooms and fitness center....