Sales activity is picking up for condo units at the 67-story Skyline Tower in Court Square, according to the CEO of a Long Island City-based brokerage firm. More than 325 units in the 802-unit development have now sold, according to Eric Benaim, the CEO and founder of Modern Spaces, whose firm was appointed to market the project in 2018. Benaim said that since October about eight or nine condos have sold each month. Last summer, shortly after the full COVID-19 lock down lifted, the number of units sold was down to three or four per month, he said.