Poor you, you should complain to the building management about the poo problems.
I think you should walk the dog somewhere else.
Or maybe carry some vinegar, drop it on what ever poo you found, and let the dog go near it .. he might get it after a few try .
I know it sound gross but I don't see what else you can do...
good luck.. hope someone will come with better idea..
Maybe also care some treat to keep him distracted from the poo |