For the past three years, Apex has relied on Vector Structural Engineers of Draper, Utah to provide these letters. “For one thing, they’re fast,” Hall says. “They give us a 24-hour turnaround time, which is awesome. They’re also competent. We operate in 900 cities and towns in seven states, and all the jurisdictions appreciate their verbiage, layout and calculations. We never have issues with anybody questioning their work.”