In the last apartment complex I managed, we had a similar problem in one of our buildings. It was an ongoing issue, because one of the main drain lines had partially collapsed. We couldn't fix the problem without moving everyone out of the building, so we had a licensed plumber come out and snake the line every three weeks ad infinitum. We never had a backup again in that building.
I think your management needs to try this preventive maintenance approach. Maybe start off snaking the line every 2 months and see if the gurgling stops.