One of the tallest buildings in Long Island City is selling quickly only two and a half months since it opened.   Located at 3 Court Square, Skyline Tower offers 802 studio-to-four-bedroom units ranging in size from 400 to 1,547 square feet. With pricing starting at approximately $500,000 to $4 million, move-ins are set to begin in 2020.   Modern Spaces has been exclusively handling marketing and sales for Skyline Tower and has already sold $223 million worth of inventory – with units sold ranging in price from $640,000 to $2.365M. Since the project’s soft launch in May, the firm has officially sold 25 percent of the building’s units.