(News Source: www.miamitimesonline.com) –  By Selena Stanley Miami Times Staff Writer – When Jay-Z sold 50% of the luxury Champagne brand Ace of Spades, Billionaires Row officially became the only majority Black-owned Champagne brand in the world. With a valuation of approximately $600 million across all of its brands, which include Champagne, a signature cognac, clothing and other goods – the luxury lifestyle company is on track to becoming one of the most recognizable Black-owned conglomerates, according to co-founders William Benson and Patrick Ductant. Breaking into the multimillion-dollar spirits industry, garnering a celebrity