There's plenty of details left out but it sounded like Mrs. B was paying the bills, but wasn't happy about it. There was a hint that Mrs. B was "sick" so perhaps she was under doctor's orders to remove the mold/animal feces/garbage/vermin/etc that may be present in her home. Alternatively, sometimes people are ordered by home inspectors to clear out their homes enough to bring them up to code or face condemnation.

The actual process is, by and large, taking everything to the dump. There do exist some hoarders who keep clean homes and for whom an estate sale could make sense, but many/most have homes that are pretty much garbage pits.

Source: a close relative of mine was a hoarder, and I've watched way too many hoarding shows.