24 units on a well and septic - advice?

[Brandy Morton]

I am considering my first apartment bldg purchase. One of the buildings I am considering is on well and septic. When I have dealt with houses with well and septic, it seems like the maintanence is rarely done and there are issues. I can't imagine 24 units with well and septic. Has anyone ever dealt with this many units having well and septic before and if so, can you give me your advice/experience? Thank you!