The retail chain Urban Outfitters Inc. has entered into an agreement to acquire “substantially all” of The Vetri Family group of restaurants, including the three-unit Pizzeria Vetri, the casual-dining concepts Amis Trattoria and Osteria, along with the Italian gastropub Alla Spina and rotisserie concept Lo Spiedo. More co-branding may be in the works. Ilan Hall opened a location inside an Urban Outfitters concept in Williamsburg, Brooklyn last year. In L.A., Urban Outfitter’s Space 15 Twenty has an Umami Burger unit.