Thanks. Strictly running with the rules I guess the character would not qualify.
In my mind however, if one gained access to domain feat by actually and having had a access to the domain and didn't just pick the feat up in the normal fashion then the requirements are in the region of being met.
I am curious how many DM's would play loose with the requirements and let this one through?
Case by case, I might let a Devotion feat stand in stead for a domain if it fits better with the character concept. Dweomerkeeper is a +2 prestige class, so I would probably side with PhaedrusXY here - if you drop all the rules, the game is no longer fun. I would be more likely to consider something like letting a Favored Soul enter Sapphire Hierarch using Law Devotion (either from a dip or from the feat). The fluff for that PrC (dangerous, I know) is about opposing the forces of chaos, so an alternative means of representing devotion to this ideal makes sense.