If she has a stand-alone house, and there is just an issue with leaking pipes, I wouldn't panic about that. The prices for sorting out work like this in Spain are low, and she would be better off just getting it done and getting on with it. If the community absolutely has to be involved, it may be different, but if they are just getting involved in order to have the work done en masse, then she is better going it alone. A couple of thousand euro gets a lot of plumbing work done in Spain. No big deal.