Q:

Filtering From 2 different tables in DAX

I am having a little trouble figuring out how to properly filter from the one side through a many relationship and back through to another one sided table. 
The issue is that a Customer can have multiple accounts which can have multiple Customers.
In the attached image I am trying to filter from a Center# through the All Customer level and then add a filter on the List table to get the correct open accounts.
So the example would be I am looking for all Customers that are associated with Center A and are attached to an account type A.
The inactive one to many relationship from All Cust -> All Accts is what needs to be active instead of the All Cust -> Open table.
I am currently using: 
CALCULATE([Cust Enrolls],CROSSFILTER('All Cust'[All Customer Number],'Open'[Primary Customer Number],Both))
to be able to filter for the account type, but that table's customer is just the single primary customer.
Any ideas on how I should either rework the model or how to create the correct measure?
Model

A:

I would recommend re-working your Data Model so that you have a clear 1-M for each dimension table to your fact tables. This will save you a tremendous amount of time and headaches now and in the future by structuring your data properly.

