Approval Hierarchy Compensation

Summary:

We have a requirement to assign the following three person based on the Area of responsibility:

Compensation Budget - AOR1

Compensation Allocation - AOR2

Compensation Approval - AOR3

Content (required):

I am currently using a FF to fetch these AOR's associated with the Comp Plan and there are individuals assigned to these AOR's for the employee eligible for Comp Plan. Question is that how do i return all three from the FF and also ensure that only the AOR1 has the access to update the Comp Budget and No Access to Allocate or approve and likewise. Basically no conflicts in their duties based on AOR.