Both 4Gamer and the official site lists Leia's name as Leia Rolando. That would be her name's official romanization. The official site has also been updated with info on the country of Ru Rondo. Pretty much most of the information is old news and has been covered already here and here.
A novelization of Tales of Graces F is set to be released this February 28, order 2011.
The novel will feature artworks by Mutsumi Inomata herself, find and the novel will be written by Go Tanaka. A sneak preview is available here. The novel is currently available for order over at Amazon.jp and will be released this February 28 for 672 Yen. Sample artworks include this, this and this.