Marketing agency Sullivan Higdon & Sink announced it will move from the Crossroads Arts District to Westport in November 2019. “We’ve outgrown our space,” said Ali Mahaffy, SHS co-CEO. “But calling an iconic Kansas City neighborhood home was important to everyone in the agency. Westport’s unique personality and convenience make the area a perfect fit for us.” The firm has grown from 87 employees in 2015 to 124 in 2018…