It may be a dry heat in Phoenix, but it’s also a hot legal market for some national law firms moving into the desert city to take advantage of the region’s flourishing economy.

Ranked the fifth-largest city in the nation with 1.5 million people at the center of a metropolitan area of 3.8 million, Phoenix has the fastest-growing population of any major U.S. city, with professional and technical jobs creating the biggest surge in its employment sectors.