Pointers Required re New Project


I am attempting to organize some work that I have and am ‘lost’.
I will try to briefly describe my Project. and perhaps someone will guide me a bit.

My main item is that I have several brokers.
Each broker has several campaigns.
Each Campaign has 5 or 6 aspects (lists)

I would like to be able to make sure that the broker appears on every page, and that campaigns and the related lists can not be confused between brokers.

Hopefully my description is clear enough for someone to tell me what I need to make here.

Thank you