In a move reflective of challenging financial circumstances, Brookfield DTLA, an affiliate of Toronto-based real estate giant Brookfield, is set to sell a 52-story office tower in Downtown Los Angeles. The property, known as 777 Tower and situated at 777 South Figueroa St. in the Financial District, has been listed for sale after the company defaulted on a significant $318.6 million loan, according to a report from Costar.