The Oversight Board questioned whether proper federal due diligence and OFAC clearance were obtained regarding Gotham’s affiliate operations in Cuba. (Reference image, floating plant (patana) in Cuba. © National Electrical Union) By THE STAR STAFF The Financial Oversight and Management Board has raised significant concerns about a proposed long‑term agreement between the Puerto Rico Electric Power Authority (PREPA) and Gothams Energy, LLC for up to 200 megawatts of temporary emergency…