Jason,

The problem you are having is that you are missing a key.

Table             Primary Key       Foreign Key
OfficeTitles      nTitle_id
Offices           nOffice_id        nTitle_id

In this example, for Offices, nOffice_id would be a Primary or candidate key and nTitle_id would be regular. Your relationship is from OfficeTitel.nTitle_id index to the Offices.nTitle_id index and is one to many.