That article from Leite’s Culinaria says exactly what I noted, @tomatotomato 
“The credit for the store goes to Michael Benevides, 44, a second-generation Portuguese businessman. Convinced he could grow the family business from its original location in the family’s garage, which had served only the local Portuguese community for 25 years, he also convinced his father. In no time, Benevides transferred the business to a larger warehouse, and, finally, to its present home in a former textile factory.”
I’ll chalk it up to, despite my sister being in marketing, not knowing about the location from a cultural heritage viewpoint (although she has also lived on the South Shore for many years).
