as far as (someone/something) is concerned
1. Regarding a certain person or situation. As far as Aunt Elaine is concerned, we still need to get a Christmas gift for her. As far as dinner is concerned, it's been pushed to 8:00, so no need to rush.
2. In one's view or opinion. As far as I'm concerned, I don't feel safe in this neighborhood anymore. Grandma doesn't care if you bring your boyfriend to Thanksgiving dinner. As far as she's concerned, the more, the merrier!