Are you trying to figure out which tier a person should belong to? In other words this sounds like you are trying to write a GetPersonTier function or something like that?
How do you handle conflicting rules? It looks like from the current data that each tier is mutually exclusive but how do you prevent that type of data?
I am not really sure I understand exactly what you are trying to do here but this looks like a nightmare to maintain as this gets more and more complicated.
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