Neither code enforcement nor adult protective services seemed interested in the situation, and in the ~2 years before she died, we saw the "recluse" twice.

All windows boarded over/blacked out and at one point added a new one (to black it out) that was not weather tight at all. He once tried to set up a trolly system to haul a 8x10 TRIPLE PANE WINDOW up the stairs we share. It was too heavy, and his solution was to smash it to pieces on the sidewalk.