Editor's note: Seeking Alpha is proud to welcome Beau Marshall as a new contributing analyst. You can become one too! Share your best investment idea by submitting your article for review to our editors. Get published, earn money, and unlock exclusive SA Premium access. Click here to find out more » Tippapatt At its current valuation in the $50-$60 range, I believe AMN Healthcare Services (NYSE:AMN), a nationwide temporary healthcare staffing company, could be a buy for a long-term investor. The company is ...