By Jacqueline Charles, Miami HeraldThe United States’ federal investment arm is expanding its reach in the Caribbean, where the U.S. International Development Finance Corporation is hoping to soon begin reviewing proposals to boost energy and improve infrastructure such as seaports and airports. A top official with the federal agency, which helps finance projects in developing nations, is scheduled to visit Jamaica, Trinidad and Tobago, and Antigua and Barbuda starting on Monday to meet with government officials and private sector leaders to better understand countries’ investment priorities. The intent is to broaden the agency’s pipeline of projects while also giving Caribbean…