Yolanda Montañez’s home resembles that of a construction site. The floor is bare, with dirt and small holes. There are no walls separating the two bedrooms on the second floor, and all of her belongings are huddled up in plastic bags. But she’s happy because for the first time in almost eight months she can look up and not see the sky through a blue, plastic tarp but instead a new, brown roof. For decades, the people of el Caño Martín Peña, a neighborhood in San Juan, have dealt with some of the highest levels of poverty, flooding, and gentrification in the country.