In "Sol Painting, Inc.," what happens involving Dona Rosa?

Dona Rosa is an older woman at the apartment complex where Roli and Merci live with their mother. At the beginning of the story she has just died and her apartment is being cleaned. As they watch workmen come in and out, Papi asks if perhaps they will need a painter soon. Merci says she will absolutely not pain the apartment, expressing concern that the place would be haunted. Roli tells Papi, though, that Merci is simply scared of "putrefaction" (42).