“The previous resident said she wishes she had looked at the property in the evening (when it gets loud) before buying, as then she may not have bought it.”

Even if this unit would have been quite, she still would have lost this home to foreclosure.

Since it’s a foreclosure, I don’t see any harm if you want run interference in the sale. Maybe just hang out in front of your unit and look friendly. Potential buyers will probably approach you with questions. My aunt is really noise sensitive and when we look for properties with her, we always ask neighbors about the noise in the complex.