Board Thread:Custom Lore Development/@comment-26295802-20160323012908/@comment-26453572-20160323013630

Nope, half Elven can't work. Imrahil's canon sister, Funduilas, is the mother of Boromir and Faramir, neither of which being of Elvish blood. Also, he wouldn't be "chief advisor" because that role already goes to the Steward, unless in the absence of the king.