From left, Caroline Frantz, Mitch Crowder and Tyler Silvestro are handling Marvel’s Richmond office. (Kate Thompson Pictures) An architecture company with roots in Puerto Rico and New York has proven an workplace in downtown Richmond. Marvel, named for principal and co-founder Jonathan Marvel, has established up shop at 300 E. Main St., filling a 1,200-square-foot storefront room in the St. Albans Lofts creating in Monroe Ward. The 9-calendar year-old business focuses on architecture, landscape design and urban organizing in these types of areas as household, business, cultural, education and learning, hospitality and recreation. Captaining Marvel’s Richmond staff is Tyler Silvestro, a companion with the business who’s taking care of the…