I did just what your friend wants to do! I took a $ 25 class at the local high school on "How to get into voice work". Luckily the instructor was a professional from New York, who organized workshops and recording sessions with David Goldberg of Edge Studio (also in New York). David came here and conducted a three hour workshop and did our recordings for demos. We were given honest evaluations about whether we should go for commercial work or narration work or both (or none!).
Since my first experience I have continued to work with David, reengineering my original demo and adding others. I now have commercial, narration, and audio book demos, which are now on CD. Since the CD becomes your resume, it has to be as good as it can be, showing as much range as you have in style and sound. On the other hand, it has to be short; my commercial demo is 56 seconds long, and features 5 voices! I am waiting to add a specialty demo to my list, featuring accents, foreign languages, and quirky voices.
I cannot say enough about David's work. He is a real perfectionist, with that wonderful ear which hears everything. And he knows what's happening in the industry. The studio also offers a terrific email newsletter. He has always had great advice when I needed it.
I have not used anyone local, though I know they are here. But I can say that I am getting jobs with the demos that David did for me! I've done three voices for Discovery Channel, two for Learning Channel, one for a documentary about Lorton Prison, and an entire instructional video for a spa product.
Let me know if your friend wants more information.