Analysis :: SSAS Design - Multiple Keys Of Same Dimension In Fact Table

I am developing a BI solution on SQL Server 2008 R2 and how to handle multiple referances to the same dimension from a fact table!

Here is the scenario;

Fact_Contracts (# M)
ServiceProvider_CompanyID, Client_CompanyID, Amount_USD 
Dim_Company( hundreds)
ID,  CityID, ProfessionID, CompanyName
Dim_City
ID, CityName
Dim_Profession
  ID, ProfessionName

As u can see there is two company references in my fact table, and the schema is in snowflake. My customer requirements state that the Contracts' amounts can be aggregated/filtered for/by, ServiceProviderCompany, its city/profession or ClientCompay, its city/profession.

First thing came in to my mind is to dublicate whole dimension structure (one for serviceproviders, one for clients), which i thought that there should be another way around?