Complex sentence: Seikaly owns and runs a multimillion-dollar real estate investment company; he is also an investor in the South Beach, Miami restaurants Quattro, Sosta, Solea, and Club Wall.
Split into simpler sentences: Seikaly owns and runs a multi-million-dollar real estate investment company. He is also an investor in the South Beach, Miami, restaurants Quattro, Sosta, Solea, and Club Wall.