Dozens of families in Marana will soon get the keys to their brand-new homes at the Angels Crossing subdivision, a Habitat for Humanity project that will house 30 families.Construction on the two- and three-bedroom houses started in January near Camino de Oeste and Mars."We are so grateful and so blessed," Lora Davidson said.Davidson and her husband will be some of the new community's first residents. While the houses are still being built, the …