Stuck between a rock and a hard place. It sounds like keeping rent as is might be considered a worthwhile “compensation” for the difficult neighbour, for now at least, from the REA/rental provider’s point of view. They would know rental costs of units adjacent to social housing would go down…

I have an unintentionally difficult neighbour in summer - next door house has a severely disabled adult child who moans and bangs around a lot, very loudly. It’s a bit disruptive in the warmer months (and sometimes we hear the swearing/DV from down the street) but I’m very lucky that in winter with the doors and windows closed I can barely hear any of that. I would struggle so much in your situation